Compiled from FYSS 2017 ( www.fyss.se ) and WHO 2017 ( www.who.int ).
Physical activity is categorized according to FYSS as: (1) Aerobic physical activity and (2) muscle-strengthening physical activity. Physical activity in everyday life and exercise training is mainly an aerobic activity, where a majority of energy production occurs via oxygen-dependent pathways. Aerobic physical activity is the type of activity typically associated with stamina, fitness, and the biggest health benefits [ 29 , 30 , 31 ]. Muscle-strengthening physical activity is referred to in everyday language as “strength training” or “resistance training” and is a form of physical exercise/training that is primarily intended to maintain or improve various forms of muscle strength and increase or maintain muscle mass [ 32 ]. Sometimes, another category is defined: Muscle-enhancing physical activity, important for maintenance or improvement of coordination and balance, especially in the elderly [ 33 ]. According to these definitions, muscle-strengthening activities primarily involve the body’s anaerobic (without oxygen) energy systems, proportionally more as intensity increases.
Exercise intensity can be expressed in absolute or relative terms. Absolute intensity means the physical work (for example; Watts [W], kg, or metabolic equivalent [MET]), while relative intensity is measured against the person’s maximum capacity or physiology (for example; percentage of maximum heart rate (%HR), rate of perceived exhaustion (RPE), W·kg −1 or relative oxygen uptake in L·min −1 ·kg −1 (VO 2 )). In terms of recommendations to the public, as in Table 1 , the intensity is often described in subjective terms (“makes you breathe harder” for moderate intensity, and “makes you puff and pant” for vigorous intensity) [ 27 ]. While objective criteria such as heart rate and accelerometry will capture the intensity of activity, they may not distinguish between different types of physical activity behaviors [ 34 ]. FYSS defines low intensity as 20%–39% of VO 2 max, <40 %HR, 1.5–2.9 METs; moderate intensity as 40%–59% of VO 2 max, 60–74 %HR, 3.0–5.9 METs, and vigorous intensity as 60%–89% of VO 2 max, 75–94 %HR, 6.0–8.9 METs. Absolute intensity, however, can vary greatly between individuals where a patient with heart disease may have a maximal capacity of <3 MET, and an elite athlete >20 MET [ 35 ].
Adaption to physical activity and training is a complex physiological process, but may, in the context of this paper, be simplified by a fundamental basic principle:” The general adaptation syndrome (GAS)” [ 36 , 37 , 38 ]. This principle assumes that physical activity disturbs the body’s physiological balance, which the body then seeks to restore, all in a dose-related response relationship. The overload principle states that if exercise intensity is too low, overload is not reached to induce desired physiological adaptations, whereas an intensity too high will result in fatigue and possibly overtraining. Thus, for adaptation to occur, greater than normal stress must be induced, interspersed with sufficient recovery periods for restoration of physiological balance [ 39 ]. During and immediately after physical exercise/training, functions of affected tissues and systems are impaired, manifested as temporarily decreased performance. You feel tired. In order to gradually improve performance capacity, repeated cycles of adequate overload and recovery are required [ 40 ]. In practice, positive effects can be seen after a relatively short period of a few weeks, but more substantial improvements if the training is maintained for a longer period.
As a rule of thumb, it is assumed that all people can adapt to physical activity and exercise, but the degree of adaptation depends on many factors, including age, heredity, the environment, and diet [ 41 , 42 , 43 , 44 ]. The hereditary factor (genetics) may be the most critical for adaptation [ 45 ]. The degree of adaptation also depends on how the person in question trained previously; a well-trained athlete usually does not have the same relative improvement as an untrained one. Even if training is thought to be specific to mode, intensity, and duration, there are some overlaps. For example, it has been found that strength training in some individuals contributes to a relatively large positive impact on health and endurance, effects previously associated primarily with aerobic exercise [ 46 , 47 ]. The overload principle may, if applied too vigorously in relation to a person’s individual adaptation ability, have detrimental effects, including reduced performance, injury, overtraining, and disease [ 10 ]. Training is a commodity that must be renewed; otherwise, you gradually lose achieved performance improvements [ 48 ], although some capacities, such as muscle memory, seem to persist for life [ 49 ].
General recommendations for health may be stated, but individual predispositions make general training schedules for specific performance effects unpredictable. All exercise training should be adjusted to individual purposes, goals, and circumstances.
Human biology requires a certain amount of physical activity to maintain good health and wellbeing. Biological adaption to life with less physical activity would take many generations. People living today have, more or less, the same requirements for physical activity as 40,000 years ago [ 50 , 51 ]. For an average man with a body weight of 70 kg, this corresponds to about 19 km daily walking in addition to everyday physical activity [ 52 ]. For most people, daily physical activity decreases, while planned, conscious exercise and training increases [ 19 , 53 ]. Unfortunately, average daily energy intake is increasing more than daily energy output, creating an energy surplus. This is one reason for the increasing number of overweight people, and a strong contributor to many health problems [ 54 ]. More sedentary living (not reaching recommended level of physical activity), combined with increased energy intake, impairs both physical and mental capabilities and increases the risk of disease. Despite this, Swedes (as an example) seemed to be as physically active and stressed but had better general health in 2015, compared to 2004 ( Figure 1 ). Compared to 2004–2007, the Swedish population in 2012–2015 reported better overall health (more county-dots are blue) and less fatigue (smaller county-dots) with similar level of physical activity (~65% indicated at least 30 min daily physical activity) and stress (~13% were stressed).
Selected physical and mental health indicators of a Sweden cohort, in relation to the degree of physical activity for the period of years 2004–2007 ( N = 29,254) and years 2012–2015 ( N = 38,553). Surveyed subjects are age 16 to 84 years old, with data representing median scores of four years, not normalized for age. Y-axis: Percentage of subjects reporting “stressed”; X-axis: Percentage of subjects indicating physical active at least 30 minutes each day. Each dot represents one County (Län), dot-size indicates self-reported fatigue, and color self-reported healthiness of the County. If 70% of the population states they are having “Good/Very good” health, the dot is blue. If less than 70% states they are having good/very good health, the dot is red. The circle indicated with a black arrow corresponds to nation median. The black line connected to the nation circle represents the movement in the X–Y plane from the year 2004 to 2007, and from 2012 to 2015, respectively. Data retrieved from the Public Health Agency of Sweden 2019-04-22 ( www.folkhalsomyndigheten.se ).
Results in Figure 1 may in part be explained by a polarization of who is physically active: Some individuals are extremely active, others very inactive, giving a similar central tendency (mean/median). As physical activity and mental stress are not changed, but health is, the figure indicates that other factors must be more important to our overall health and fatigue. Recently, a national study of Swedish 11- to 15-year-olds concluded that this age group is inactive for most of their time awake, that is, sitting, standing or moving very little [ 55 ]. Time as inactive increased with age, from 67 percent for 11-year-olds to 75 percent for 15-year-olds. The study states that in all age groups, the inactive time is evenly distributed over the week, with school time, leisure time, and weekend. Further, those who feel school-related stress have more inactive time, both overall and during school hours, than those who have less school-related stress.
People active in sports have, in general, better health than those who do not participate in sports, because they are physically and mentally prepared for the challenges of sports, abilities that in many cases can be transferred to other parts of life [ 56 ].
However, there is a certain bias in this statement. Sport practitioners are already positively selected, because sickness and injury may prevent participation. As many health benefits of sport are related to the level of physical activity, separation of sport and physical exercise may be problematic. Regardless, societal benefits of these health effects can be seen in lower morbidity, healthier elderly, and lower medical costs [ 7 , 57 , 58 ].
Health effects of physical activity in many cases follow a dose–response relationship; dose of physical activity is in proportion to the effect on health [ 59 , 60 ]. Figure 2 depicts the relationship between risk of death and level of physical activity, in a Finnish twin cohort, adjusted for smoking, occupational group, and alcohol consumption [ 59 ]. Odds ratio (OR) for the risk of all-cause mortality in a larger sample in the same study was 0.80 for occasional exercisers ( p = 0.002, 95% CI = 0.69–0.91). This dose–response relationship between risk of all-cause mortality and physical activity is evident in several extensive studies [ 60 , 61 , 62 ]. The total dose is determined by the intensity (how strenuous), duration (duration), and frequency (how often). While Figure 2 shows sex differences in death rates, it is likely that sedentary behavior is equally hazardous for men and women, but inconsistent results sometime occur due to inadequate assessment measures, or low statistical power [ 59 , 63 ]. To obtain the best possible development due to physical exercise/training, both for prevention and treatment purposes, a basic understanding of how these variables affect the dose of activity is required, as well as understanding how they can be modified to suit individual requirements. A physically active population is important for the health of both the individual and society, with sport participation being one, increasingly important, motivator for exercise.
Relative risk (odds ratio; OR) of premature death in relationship to level of physical activity, in 286 male and 148 female twin pairs, adjusted for smoking, occupational group, and use of alcohol [ 59 ].
There is strong scientific evidence supporting an association between physical exercise/training and good physical and mental health. For example: A reduction in musculoskeletal disorders and reduced disability due to chronic disease [ 27 , 64 ], better mental health with reduced anxiety [ 65 , 66 ], insomnia [ 67 ], depression [ 31 ], stress [ 68 ], and other psychological disorders [ 69 ]. Physical and mental health problems are related to an increased risk of developing a number of our major public health diseases and may contribute to premature death ( Table 2 ).
Health-related physiological effects of aerobic and muscle strengthening physical activity. Green circle indicates that the activity contributes with an effect, whereas a red circle indicates that the activity has no proven effect. Orange circle indicates that the activity may in some cases be effective.
Effects on the Body | Health Effects | Aerobic | |
---|---|---|---|
Larger proportion slow-twitch fibers [ , ] | Lower risk for metabolic syndrome with increased exchange of gases and nutrition [ , ] | ||
Larger proportion slow-twitch [ ] | Increased strength, coordination and balance in elderly [ ] and in sickness [ ], lower risk for fall [ ] | ||
Formation of new capillaries [ ] | Increased aerobic capacity [ ] | ||
Improved endothelial function [ ] | Lower risk for cardiovascular disease [ ], improved function in heart disease [ ] | ||
Increased mitochondrial volume [ ] | Increased aerobic capacity [ ] | ||
Improved glucose transport [ ] | Lower risk or metabolic syndrome/Type-2 diabetes [ ] | ||
Improved insulin sensitivity [ ] | Improved health in people with Type-2 diabetes [ ], prevention of Typ-2 diabetes [ ] | ||
Increased heart capacity [ ] | Lower risk for cardiovascular disease [ ], fewer depressions [ , ], also in children [ ] | ||
Increased skeletal volume and mineral content [ ] | Improved skeletal health [ , ] | ||
Improved body composition [ ] | Lower risk for metabolic syndrome [ ] | ||
Improved blood pressure regulation [ , ] | Lower risk for cardiopulmonary disease [ ] | ||
Improved blood lipid profile [ ] | Lower risk for cardiopulmonary disease in elderly [ , ] and Alzheimer’s [ ] No effect on blood lipid profiles in children and adolescents [ ] | ||
Improved peripheral nerve function [ ] | Better coordination, balance and reaction [ , ], especially in children and elderly [ ] | ||
Enhanced release of signaling substances [ , ] | Better sleep [ ], less anxiety [ ], treatment of depression [ ] | ||
Improved hippocampus function [ ] | Improved cognition and memory [ ], less medication [ ] | ||
Positive effects on mental capacity [ ] | Counteract brain degeneration by diseases [ ] and age [ ] | ||
Improved immune function [ ] | Decreased overall risk for disease [ , ], anti-inflammatory effects [ , ] | ||
Strengthening the connection between brain, metabolism and immune function [ ] | Decreased risk for disease [ ], improved metabolism [ ], decreased risk for depression [ ] | ||
Improved intestinal function [ , ] | Improved health [ ], mitigated metabolic syndrome, obesity, liver disease, and some cancers [ ] |
The effects of physical activity and exercise are both acute (during and immediately after) and long-lasting. Effects remaining after a long period of regular physical activity have far-reaching consequences for health and are described below. For example, some muscle enzymes’ activity can be quickly increased by physical exercise/training but just as quickly be lost when idle [ 118 ]. Other changes remain for months or years even if training ends—for instance, increased number and size of muscle fibers and blood vessels [ 49 , 119 , 120 ]. Good health, therefore, requires physical activity to be performed with both progression and continuity. Most of the conducted physical exercise/training is a combination of both aerobic and muscle strengthening exercise, and it can be difficult to distinguish between their health effects ( Table 2 ).
To describe ill-health, indicators of life expectancy, disease incidence (number), and prevalence (how often) are used [ 121 ]. In describing the relationship between physical activity and falling ill with certain diseases, the dose–response relationship, the effect size (the risk reduction that is shown in studies), and the recommended type and dose of physical activity are considered [ 122 ]. Table 3 shows the relative effects of regular physical activity ton the risk of various diseases (US Department of Human Services, 2009). The greatest health gains are for people who move from completely sedentary to moderately active lifestyles, with health effects seen before measurable improvements in physical performance. Previously, most scientific studies collected data only on aerobic physical activity. However, resistance exercise also shows promising health (mental and physical) and disease-prevention effects [ 123 , 124 , 125 , 126 , 127 ].
Disease prevention effects of regular physical activity.
Health Condition | Risk Reduction or Health Improvement | Recommendations for Physical Activity | Dose-Response Relationship | Differences between Sex, Age, Ethnicity etc. |
---|---|---|---|---|
30% (44% elderly) | General recommendations | Yes | No | |
20%–35% | General recommendations | Yes | Insufficient evidence | |
30%–40% | General recommendations | Yes | No | |
25%–42% | General recommendations, data primarily on aerobic PA | Yes | Insufficient evidence | |
Brain cancer: Limited evidence ; Breast cancer: 20%; Bladder cancer: 13%–15%; Colon cancer: 30%; Endometrial cancer: 17%–35%; Esophageal cancer : 6%–21%; Gastric cancer: 19%; Head & neck cancers: 15%–22%, limited evidence; Hematological cancers: No-low effect, limited evidence ; Lung cancer: 13%–26%; Ovarian cancer: Limited/conflicting evidence; Pancreatic & prostate cancer: Limited evidence; Renal cancer: 11%–23%; Rectal cancer: No risk reduction, limited evidence; Thyroid cancer: No risk reduction | General recommendations, data primarily on aerobic PA | Renal & thyroid cancer: No. Lung, hematological, head and neck cancers: Limited evidence. Other; Yes. | Breast cancer: Weaker evidence for Hispanic and Black women. Gastric cancer: Weaker evidence for women Renal cancer: Weaker evidence for Asians Lung cancer: Greater effect for women Other: Limited evidence/No known difference | |
PA alone, without diet intervention only has an effect at large volume | General recommendations, combined with diet interventions | Yes | No | |
PA supports weight maintenance | General recommendations, stronger evidence for aerobic PA | Limited evidence | Insufficient evidence | |
36%–68% for hip fracture 1%–2% increased bone density | General recommendations including muscle- strengthening physical activity | Yes | Hip fracture: Largest effect in elderly women Bone density: Largest effect in women | |
Magnitude is highly variable and mode-dependent | Weight bearing activity | Yes | Decreased effect with age | |
30% increased chance to counteract or postpone a decrease in functional strength/capacity 30% lower risk of falls | General recommendations including muscle- and skeletal-strengthening physical activity | Functional health: Yes Falls: No/unclear | Increased functional capacity mostly seen in older adults ages 65 or more. | |
20%–30% lower | General recommendations | Yes | No | |
Improved quality, sleep onset latency and total sleep time | General recommendations | No | No | |
20%–30% lower | General recommendations | No | No | |
20%–30% lower | General recommendations | No | No | |
Improved for preadolescent children and adults aged 50 years or older | General recommendations | Conflicting findings | Insufficient evidence for adolescents and adults. Ethnicity: No. |
Compiled from US Department of Health and Human Service, https://health.gov/paguidelines/report/ [ 62 , 146 ] 1 : Risk reduction refers to the relative risk in physically active samples in comparison to a non-active sample, i.e., a risk reduction of 20% means that the physically active sample has a relative risk of 0.8, compared to the non-active sample, which has 1.0. 2 : In general, general recommendations for PA that are described and referred to herein apply to most conditions. However, in some cases, more specific recommendations exist, more in depth described by the US Department of Health and Human Service, amongst others [ 62 ]. 3 : Evidence is dependent on cancer subtype; refer to US Department of Health and Human Service [ 62 ] for in-depth guidance. PA = Physical.
Aerobic physical activity has been shown to benefit weight maintenance after prior weight loss, reduce the risk of metabolic syndrome, normalize blood lipids, and help with cancer/cancer-related side effects ( Table 2 and Table 3 ), while effects on chronic pain are not as clear [ 29 ].
Muscle-strengthening physical activity has, in contrast to aerobic exercise, been shown to reduce muscle atrophy [ 128 ], risk of falling [ 75 ], and osteoporosis [ 74 ] in the elderly. Among the elderly, both men and women adapt positively to strength training [ 129 ]. Strength training also prevents obesity [ 130 ], enhances cognitive performance if done alongside aerobic exercise [ 131 ], counteracts the development of neurodegenerative diseases [ 132 , 133 , 134 ], reduces the risk of metabolic syndrome [ 135 ], counteracts cancer/cancer-related side effects [ 135 , 136 ], reduces pain and disability in joint diseases [ 137 ], and enhances bone density [ 137 , 138 ]. The risk of falling increases markedly with age and is partly a result of reduced muscle mass, and reduced coordination and balance [ 76 , 139 , 140 ]. A strong correlation between physical performance, reduced risk of falls, and enhanced quality of life is therefore, not surprisingly, found in older people [ 141 ]. Deterioration in muscle strength, but not muscle mass, increases the risk of premature death [ 142 ] but can be counteracted by exercise as a dose–response relationship describes the strength improvement in the elderly [ 122 , 143 ]. Recommendations state high-intensity strength training (6–8 repetitions at 80% of 1-repetition maximum) as most effective [ 144 ]. Muscle strengthening physical activity for better health is recommended as a complement to aerobic physical activity [ 29 ]. Amongst the elderly, vibration training can be an alternative to increase strength [ 145 ].
Mental illness is a global problem affecting millions of people worldwide [ 147 ]. Headache, stress, insomnia, fatigue, and anxiety are all measures of mental ill health. The term “ ill health ” constitutes a collection of several mental health problems and symptoms with various levels of seriousness. Studies have compared expected health benefits from regular physical activity for improvement of mental health with other treatments, for example, medication. Most recent studies show that physical activity and exercise used as a primary, or secondary, processing method have significant positive effects in preventing or alleviating depressive symptoms [ 31 , 148 , 149 , 150 , 151 ] and have an antidepressant effect in people with neurological diseases [ 152 ]. Training and exercise improve the quality of life and coping with stress and strengthen self-esteem and social skills [ 69 , 153 ]. Training and exercise also lessen anxiety in people who are diagnosed with an anxiety- or stress-related disease [ 68 ], improve vocabulary learning [ 154 ], memory [ 155 , 156 ], and creative thinking [ 157 ].
The same Swedish data as used in Figure 1 show that between the years 2004–2007 and 2012–2015 anxiety, worry, and insomnia decreased but were not obviously correlated to the slightly increased level of physical activity in the population during the same period. Thus, in a multifactorial context, the importance of physical exercise alone cannot be demonstrated in this dataset.
Some of the suggested physiological explanations for improved mental health with physical activity and exercise are greater perfusion and increased brain volume [ 107 , 158 ], increased volume of the hippocampus [ 106 ], and the anti-inflammatory effects of physical activity, reducing brain inflammation in neurological diseases [ 159 ]. Physical exercise may also mediate resilience to stress-induced depression via skeletal muscle peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC-1α), enhancing kynurenine conversion to kynurenine acid, which in turn protects the brain and reduces the risk for stress-induced depression [ 153 ]. Further, increased release of growth factors, endorphins, and signaling molecules are other exercise-induced enhancers of mental health [ 69 ].
Sport’s main purposes are to promote physical activity and improve motor skills for health and performance and psychosocial development [ 56 ]. Participants also gain a chance to be part of a community, develop new social circles, and create social norms and attitudes. In healthy individuals, and patients with mental illness, sport participation has been shown to provide individuals with a sense of meaning, identity, and belonging [ 160 , 161 ]. Whether the sport movement exists or not, training and competition including physical activity will happen. Sport’s added values, in addition to the health benefits of physical activity, are therefore of interest. Some argue that it is doubtful, or at least not confirmed, that health development can come from sport, while others believe that healthy sport is something other than health, reviewed in depth by Coakley [ 162 ]. In a sporting context, health is defined as subjective (e.g., one feels good), biological (e.g., not being sick), functional (e.g., to perform), and social (e.g., to collaborate) [ 163 ]. Holt [ 56 ] argued that the environment for positive development in young people is distinctly different from an environment for performance, as the latter is based on being measured and assessed. That said, certain skills (goal setting, leadership, etc.) can be transferred from a sporting environment to other areas of life. The best way to transfer these abilities is, at the moment, unclear.
Having the goal to win at all costs can be detrimental to health. This is especially true for children and adolescents, as early engagement in elite sports increases the risk of injury, promotes one-dimensional functional development, leads to overtraining, creates distorted social norms, risks psychosocial disorders, and has the risk of physical and psychological abuse [ 15 , 164 ]. Of great importance, therefore, is sport’s goal of healthy performance development, starting at an early age. For older people, a strong motivating factor to conduct physical activity is sports club membership [ 165 ]. One can summarize these findings by stating sport’s utility at the transition between different stages of the life; from youth to adulthood and from adulthood to old age. There, sports can be a resource for good physical and mental health [ 166 ].
Today, a higher proportion of the population, compared to 50 years ago, is engaged in organized sports, and to a lesser extent performs spontaneous sports ( Figure 3 ), something that Engström showed in 2004 [ 17 ] and is confirmed by data from The Swedish Sports Confederation ( www.rf.se ). Of the surveyed individuals in 2001, 50%–60% of children and young people said they were active in a sports club. The trend has continued showing similar progression to 2011, with up to 70% of school students playing sports in a club. Furthermore, the study shows that those active in sport clubs also spontaneously do more sports [ 167 ]. Similar data from the years 2007–2018, compiled from open sources at The Swedish Sports Confederation, confirm the trend with an even higher share of youths participating in organized sports, compared to 1968 and 2001 ( Figure 4 ).
Spontaneous sport has decreased over the last decades, to the advantage of organized sport. Data compiled from Engström, 2004, The Swedish Research Council for Sport Science.
Data compiled from open sources report Sport Statistics (Idrotten i siffror) at The Swedish Sports Confederation for the year 2011 ( www.rf.se ).
Taking part in sports can be an important motivator for physical activity for older people [ 165 , 166 ]. With aging, both participation in sports ( Figure 4 ) and physical activity in everyday life [ 168 ] decreases. At the same time, the number of people who are physically active both in leisure and in organized sports increases (The Public Health Agency of Sweden 2017; www.folkhalsomyndigheten.se ). Consequently, among elderly people, a greater proportion of the physical activity occurs within the context of sport [ 8 , 28 ]. Together, research shows that organized sports, in clubs or companies, are more important for people’s overall physical activity than ever before. Groups that are usually less physically active can be motivated through sport—for example, elderly men in sport supporters’ clubs [ 169 ], people in rural areas [ 170 ], migrants [ 171 ], and people with alternative physical and mental functions [ 172 ]. No matter how you get your sporting interest, it is important to establish a physical foundation at an early age to live in good health when you get older ( Figure 5 ). As seen in Figure 5 , a greater sport habitus at age 15 results in higher physical activity at 53 years of age. Early training and exposure to various forms of sports are therefore of great importance. Participation creates an identity, setting the stage for a high degree of physical activity later in life [ 173 ].
Odds ratio (OR) of physical activity at age 53 in relation to Sport habitus at age 15. Sport habitus (“the total physical capital"), including cultural capital, athletic diversity, and grades in physical education and health are, according to Engström [ 173 ], the factors most important for being physically active in later life. For a further discussion on sport habitus, the readers are referred to Engström, 2008 [ 173 ]. Numbers above bar show the 95% confidence interval. ** = significant difference from “Very low”, p < 0.01. *** = p < 0.001.
The effects of participation in organized sports for children and young people are directly linked to physical activity, with long term secondary effects; an active lifestyle at a young age fosters a more active lifestyle as an adult. As many diseases that are positively affected by physical activity/exercise appear later in life, continued participation in sport as an adult will reduce morbidity and mortality.
It must be emphasized that good physical and mental health of children and young people participating in sport requires knowledge and organization based on everyone’s participation. Early specialization counteracts, in all regards, both health and performance development [ 174 , 175 ].
According to several reviews, there is a correlation between high daily physical activity in children and a low risk for obesity, improved development of motor and cognitive skills, as well as a stronger skeleton [ 176 , 177 ]. Positive effects on lipidemia, blood pressure, oxygen consumption, body composition, metabolic syndrome, bone density and depression, increased muscle strength, and reduced damage to the skeleton and muscles are also described [ 178 , 179 ]. If many aspects are merged in a multidimensional analysis [ 8 , 173 ], the factors important for future good health are shown to be training in sports, broad exposure to different sports, high school grades, cultural capital, and that one takes part in sport throughout childhood ( Table 4 ).
Compiled health profiles for men and women at the age of 20 years, depending on participation in organized sports at the age of 5, 7, 8, 10, 14, and 17 years.
Physical Activity at Age 20 Years | Girls | Boys | ||||
---|---|---|---|---|---|---|
Sport Participation as Young | ||||||
Participate | Quit | Never | Participate | Quit | Began late | |
⮉ | ⮉ | ⮋ | ⮉ | ⮉ | ⮋ | |
⇔ | ⇔ | ⇔ | ⮉ | ⮉ | ⮋ | |
⇔ | ⇔ | ⇔ | ⇔ | ⇔ | ⇔ | |
⇔ | ⇔ | ⇔ | ⇔ | ⇔ | ⇔ | |
⇔ | ⇔ | ⇔ | ⮋ | ⮉ | ⮉ | |
⮉ | ⮉ | ⮋ | ⮉ | ⮋ | ⮉ | |
) | ⮉ | ⮉ | ⮋ | ⮉ | ⮋ | ⮉ |
⮉ | ⮉ | ⮋ | ⇔ | ⇔ | ⇔ | |
⇔ | ⇔ | ⇔ | ⇔ | ⇔ | ⇔ | |
⇔ | ⇔ | ⇔ | ⇔ | ⮉ | ⇔ | |
⇔ | ⇔ | ⇔ | ⇔ | ⇔ | ⇔ | |
⇔ | ⇔ | ⇔ | ⇔ | ⇔ | ⇔ |
Classification with repeated latent class analysis creates three groups for girls and boys, respectively: Children who never participated (girls only), participated, quit prematurely, or began late (only boys) in sports. Arrows indicate whether participation in sports at young age has an effect on health at 20 years of age. Green up arrow is positive, red down arrow negative, and a horizontal black double arrow shows that sport had no significant effect. Modified from Howie et. al., 2016 [ 8 ].
Psychological benefits of sports participation of young people were compiled by Eime et al. [ 1 ], where the conclusion was that sporting children have better self-esteem, less depression, and better overall psychosocial health. One problem with most of these studies, though, is that they are cross-sectional studies, which means that no cause–effect relationship can be determined. As there is a bias for participating children towards coming from socially secure environments, the results may be somewhat skewed.
As Table 4 and Table 5 show, there are both positive and negative aspects of sports. Within children’s and youth sports, early specialization to a specific sport is a common phenomenon [ 175 ]. There is no scientific evidence that early specialization would have positive impact, neither for health nor for performance later in life [ 175 ]. No model or method including performance at a young age can predict elite performance as an adult. By contrast, specialization and competitiveness can lead to injury, overtraining, increased psychological stress, and reduced training motivation, just to mention a few amongst many negative aspects [ 174 , 175 ]. Another important aspect is that those who are excluded from sports feel mentally worse [ 8 ]. As there is a relationship between depressive episodes in adolescence, and depression as adults [ 116 ], early exclusion has far-reaching consequences. Therefore, sports for children and young people have future health benefits by reducing the risk of developing depression and depressive symptoms, as well as improved wellbeing throughout life.
Positive and negative aspects with sport (at young age).
Aspect | Positive | Negative |
---|---|---|
Better self-esteem Better academic results That endurance and hard work pay off Independence and responsibility Making wise decisions Keep a positive attitude Manage stress Set clear goals Higher assessment of skills Higher working standards Better discipline Late alcohol store Lower alcohol consumption (in most sports) Less drugs Greater social capital Better relationships with adults Uses TV/PC less Lower risk of school dropout | Emotional fatigue One-dimensional identity Risk of abuse Increased stress Injuries Temptation for doping Fear of punishment Fear of failure Feeling pressure from the surroundings Fear of disappointing surroundings Risk of burnout Risk of overtraining Poor sleep Decrepit Repeated infections Risk of self-sacrifice Risk of self-injury Increased risk of destructive decisions (doping, cheating etc.) Risk of depression in case of rejection | |
The usefulness of teamwork Good communication Larger contributions to society later in life Larger contributions to the family later in life Lower crime Opportunity in developing countries Increased chance of being active in sports clubs as older Easier to reach with education | Less integrated with the family Social isolation from other society | |
Greater physical literacy Abilities to live a healthy life as adult and elderly Less smoking Less drugs Lower body fat Larger muscle mass Beneficial metabolism Higher aerobic and anaerobic capacity Lower risk for fractures as older Reduced general disease risk | Physical fatigue Increased injury risk Risk of eating disorders Overtraining Temptation for doping Risk of abuse (physical and mental) Unilateral training and development For Para athletes, injury can be a double handicap Worse oral health |
While some degree of sport specialization is necessary to develop elite-level athletes, research shows clear adverse health effects of early specialization and talent selection [ 180 ]. More children born during the fall and winter (September–December) are excluded [ 181 ], and as a group, they are less physically active than spring (January–April) children, both in sports and leisure ( Figure 6 ). In most sports and in most countries, there is a skewed distribution of participants when sorted by birth-date, and there are more spring children than fall children among those who are involved in sport [ 182 , 183 , 184 , 185 , 186 ]. Because a large part of the physical activity takes place in an organized form, this leads to lower levels of physical activity for late-born persons (Malm, Jakobsson, and Julin, unpublished data). Early orientation and training in physical activity and exercise will determine how active you are later in life. Greater attention must be given to stimulating as many children and young people as possible to participate in sport as long as possible, both in school and on their leisure time. According to statistics from the Swedish Sports Confederation in 2016, this relative-age effect persists throughout life, despite more starting than ending with sport each year [ 18 ].
The figure shows the distribution of 7597 children aged 10 years and younger who in 2014 were registered as active in one particular, individual sport in Sweden (data compiled from the Swedish Sport Confederation, www.rf.se ). Spring, Summer, and Fall represent January–April, May–August, and September–December, respectively.
When summarize, the positive and negative aspects of sport at a young age can be divided into three categories: (1) Personal identification, (2) social competence, and (3) physiological capacity, briefly summarized in Table 5 . A comprehensive analysis of what is now popularly known as “physical literacy” has recently been published [ 187 ].
Sports can make children and young people develop both physically and mentally and contribute with health benefits if planned and executed exercise/training considers the person’s own capacities, social situation, and biological as well as psychological maturation. In children and adolescents, it is especially important to prevent sports-related injuries and health problems, as a number of these problems are likely to remain long into adulthood, sometimes for life. Comprehensive training is recommended, which does not necessarily mean that you have to participate in various sports. What is required is diverse training within every sport and club. Research shows that participation in various sports simultaneously during childhood and adolescence is most favorable for healthy and lifelong participation [ 8 , 173 , 188 , 189 ].
Adults who stop participating in sports reduce their physical activity and have health risks equal to people who have neither done sports nor been physical [ 190 , 191 ]. Lack of adherence to exercise programs is a significant hindrance in achieving health goals and general physical activity recommendations in adults and the elderly [ 192 ]. While several socioeconomic factors are related to exercise adherence, it is imperative that trainers and health care providers are informed about factors that can be modulated, such as intervention intensity (not to high), duration (not too long), and supervision, important for higher adherence, addressed more in depth by Rivera-Torres, Fahey and Rivera [ 192 ].
Healthy aging is dependent on many factors, such as the absence of disease, good physical and mental health, and social commitment (especially through team sports or group activities) [ 193 ]. Increased morbidity with age may be partly linked to decreased physical activity. Thus, remaining or becoming active later in life is strongly associated with healthy aging [ 194 ]. With increased age, there is less involvement in training and competition ( Figure 4 ), and only 20% of adults in Sweden are active, at least to some extent, in sports clubs, and the largest proportion of adults who exercise do it on their own. The following sections describes effects beyond what is already provided for children and youths.
Participation in sports, with or without competition, promotes healthy behavior and a better quality of life [ 166 ]. Exclusion from sports at a young age appears to have long-term consequences, as the previously described relative age effect ( Figure 6 ) remains even for master athletes (Malm, Jakobsson, and Julin, unpublished data). Because master athletes show better health than their peers [ 95 ], actions should be taken to include adults and elderly individuals who earlier in life were excluded from, or never started with sport [ 195 ]. As we age, physical activity at a health-enhancing intensity is not enough to maintain all functions. Higher intensity is required, best comprising competition-oriented training [ 196 , 197 ]. One should not assume that high-intensity exercise cannot be initiated by the elderly [ 198 ]. Competitive sports, or training like a competitive athlete as an adult, can be one important factor to counter the loss of physical ability with aging [ 199 ]. In this context, golf can be one example of a safe form of exercise with high adherence for older adults and the elderly, resulting in increased aerobic performance, metabolic function, and trunk strength [ 200 , 201 ].
Increased morbidity (e.g., cardiovascular disease) with aging is seen also among older athletes [ 202 ] and is associated with the same risk factors as in the general population [ 203 ]. An increased risk of cardiovascular disease among adults (master) compared to other populations has been found [ 204 ]. Unfortunately, the designs and interpretations of these studies have been criticized, and the incidence of cardiac arrest in older athletes is unclear [ 205 ]. In this context, the difference between competitive sports aiming to optimize performance and recreational sports has to be taken into account, where the former is more likely to induce negative effects due to high training loads and/or impacts during training and games. Although high-intensity training even for older athletes is positive for aerobic performance, it does not prevent the loss of motor units [ 206 ].
Quality of life is higher in sporting adults compared to those who do not play sports, but so is the risk of injury. When hit by injury, adults and young alike may suffer from psychological disorders such as depression [ 207 ], but with a longer recovery time in older individuals [ 208 ]. As with young athletes, secession of training at age 50 years and above reduces blood flow in the brain, including the hippocampus, possibly related to long-term decline in mental capacity [ 209 ].
As for children and young people, many positive health aspects come through sport also for adults and the elderly [ 210 ]. Sport builds bridges between generations, a potential but not elucidated drive for adults’ motivation for physical activity. The percentage of adults participating in competitive sports has increased in Sweden since 2010, from about 20 percent to 30 percent of all of those who are physically active [ 18 ], a trend that most likely provides better health for the group in the 30–40 age group and generations to come.
C.M. and A.J. conceived and designed the review. C.M., A.J., J.J. and interpreted the data and drafted the manuscript. J.J. edited the manuscript, tables, and figures. All authors approved the final version.
This work was supported by the Swedish Sports Confederation.
The authors declare no conflict of interest.
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Benefits of Exercise Essay: Obesity and being unhealthy is found in almost every third of children aged two to fifteen. So it’s more important to address this major issue and to get people fit and active.
Exercise helps in the stimulation muscles development, joints and bones, as well as the lungs and heart. It helps a person maintain a constant healthy weight. Exercise helps young people manage symptoms of depression and anxiety.
You can also find more Essay Writing articles on events, persons, sports, technology and many more.
We are providing students with essay samples on a long essay of 500 words and a short essay of 150 words on the topic of Benefits Of Exercise for reference.
Long Essay on Benefits of Exercise is usually given to classes 7, 8, 9, and 10.
We have always heard the word ‘fitness’ and ‘health’. We use it ourselves when we say such phrases like ‘fitness is the key’ and ‘health is wealth’. The word health means the idea of ‘being well’. When a person functions well physically as well as mentally, we call that person healthy and fit.
A healthy lifestyle demands regular exercise, and it is an integral part of being fit. Study after study has shown us the various benefits it can have. Not only does regular exercise help you reduce your risk of developing diseases and manage your weight, but it can also help prevent and treat mental health problems. Exercise is a great way to unwind from the stresses of life and can boost your wellbeing and mood. No matter what one’s age, everyone gets benefitted from regular exercise. To instil healthy habits that may last a lifetime of children, one makes their kids active from an early age. Being active is a huge benefit for older people and seniors.
Exercise helps in the stimulation muscles development, joints and bones, as well as the lungs and heart. It helps children maintain a constant healthy weight. Daily exercise also provides kids with the opportunity to make friends and interact with other people. Exercise helps young people manage symptoms of depression and anxiety.
Compared with previous generations, sedentary lifestyles, jobs, and long commutes have put us more at risk of the dangers of inactivity and unhealthy. Guidelines recommend us to take as much opportunity as we can to do exercise and be active. Every adult should aim at least 150 minutes of moderate-intensity activity over the course of the week. Strengthening exercises are also very important to do at least two days a week. Activities such as exercising with weights or heavy gardening can be included in strengthening exercises. One should aim to do at least some physical activity every day.
There are a whole host of benefits of being as active as possible and reduces one chance of getting several health conditions. Exercising regularly improves your muscular, bone health, cardiorespiratory fitness. It reduces your risk of hypertension or high blood pressure, stroke, coronary heart disease and some cancers. It reduces depression and anxiety and boosts good mental health with good wellbeing and mood.
Whether you have always been active or you’re just starting, make sure you take slow steps to stay, avoid injury and things like a muscle strain. It’s important to drink enough water to keep you hydrated and to eat the right foods to provide the fuel you need to exercise. But a balanced, wholesome diet is the best plan of action for most people.
A person stays happier, being fit and healthy. A healthy and fit person is less prone to chronic diseases. In any pressure situation, a healthy mind reacts better. The self-confidence of a person is increased. Drastic reduction in risk of heart failure. With the increased immunity power helps the body fight against cancerous cells. The intensity of getting a fracture gets decreased with regular exercise.
Short Essay on Benefits of Exercise is usually given to classes 1, 2, 3, 4, 5, and 6.
Ahealthy lifestyle demands regular exercise, and it is an integral part of being fit. Study after study has shown us the various benefits it can have. Not only does regular exercise help you reduce your risk of developing diseases and manage your weight, but it can also help prevent and treat mental health problems.
Exercise is a great way to unwind from the stresses of life and can boost your wellbeing and mood. Exercise helps in the stimulation muscles development, joints and bones, as well as the lungs and heart. It helps a person maintain a constant healthy weight. Exercise helps young people manage symptoms of depression and anxiety. A person stays happier, being fit and healthy. A healthy and fit person is less prone to chronic diseases. In any pressure situation, a healthy mind reacts better. The self-confidence of a person is increased. Drastic reduction in risk of heart failure. With the increased immunity power helps the body fight against cancerous cells. The intensity of getting a fracture gets decreased with regular exercise.
Question 1. Is it good to exercise every day?
Answer: In a well-structured workout program, a weekly day of rest is often advised. As long as you are not getting obsessive about it and not pushing yourself too hard, working out every day is fine.
Question 2. What happens if you don’t exercise?
Answer: If one does less exercise or activity will become deconditioned. Your lose bulk and weakens including muscle strain. Your muscle needs breathing especially the large muscles in legs and arms. The more breathless you become, the less activity you do.
Question 3. Which exercise burns the most fat?
Answer: High-Intensity Interval Training is one of the most effective ways to burn body fat. HIIT is an intense aerobic method that includes Tabata-styled or sprinting workout designed to condition the body in less time than steady-state low-intensity cardio.
We use an admissions lottery to estimate the effect of a non-means tested preschool program on students’ long-run earnings, employment, family income, household formation, and geographic mobility. We observe long-run outcomes by linking both admitted and non-admitted individuals to confidential administrative data including tax records. Funding for this preschool program comes from an Indigenous organization, which grants Indigenous students admissions preference and free tuition. We find treated children have between 5 to 6 percent higher earnings as young adults. The results are quite large for young women, especially those from the lower half of the initial parental household income distribution. There is also some evidence that children, regardless of gender, from households with below median parental incomes realize the largest average increases in earnings in adulthood. Finally, we find that increased earnings start at ages 21 and older for the treated students. Likely mechanisms include high-quality teachers and curriculum.
No funding sources or financial relationships to declare. Any opinions and conclusions expressed herein are those of the authors and do not represent the views of the U.S. Census Bureau or the National Bureau of Economic Research. The Census Bureau has reviewed this data product for unauthorized disclosure of confidential information and has approved the disclosure avoidance practices applied to this release. DRB Approval Numbers: CBDRB-FY2022-CES010-022; CBDRB-FY2023-CES005-008; CBDRB‑FY24‑0038; CBDRB‐FY24‐0208.
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UKHSA is working with partners to investigate a Shiga toxin-producing E. coli (STEC) outbreak.
As of 11 June, there have been a further 98 cases associated with this outbreak of STEC O145 in the UK, bringing the total number of confirmed cases to 211. All cases had sample dates before 31 May, but we expect this figure to rise as whole genome sequencing is ongoing to find any further cases which may be linked to the outbreak.
147 in England
27 in Wales
35 in Scotland
2 in Northern Ireland (for these cases, evidence suggests that they acquired their infection while visiting England)
Based on information from 160 cases to date, 42% were admitted to hospital.
UKHSA has worked closely with the Food Standards Agency ( FSA ), Food Standards Scotland and the devolved public health agencies to investigate the incident, carrying out epidemiological investigations and whole genome sequence analysis to help identify foods commonly consumed by the cases.
As a result of evidence gathered to date, product recall information notices have been published by FSA as a precaution.
Trish Mannes, Incident Director at UKHSA , said:
We would like to thank all the cases who have provided information that has enabled us, through epidemiological analysis of questionnaire data and food tracing investigations, to narrow down the likely food product linked to this outbreak. Symptoms of infections with STEC include severe and sometimes bloody diarrhoea, stomach cramps, vomiting and fever. If you are unwell, have eaten salad leaves recently and are concerned about any symptoms, follow NHS.uk guidance on when to seek help and the steps you can take to avoid further spread to family and friends. While diarrhoea and vomiting can have a range of causes, there are simple steps you can take to reduce your risk and risk of infecting others. Washing your hands with soap and warm water and using disinfectants to clean surfaces will help stop any further spread of infection. If you are unwell with diarrhoea and vomiting, you should not prepare food for others while unwell and avoid visiting people in hospitals or care homes to avoid passing on the infection in these settings. Do not return to work, school or nursery until 48 hours after your symptoms have stopped.
Darren Whitby, Head of Incidents at the FSA , said:
Sandwich manufacturers are taking a precautionary measure to recall various sandwiches, wraps, subs and rolls in response to findings from investigations by the Food Standards Agency ( FSA ), Food Standards Scotland (FSS) and UK Health Security Agency ( UKHSA ) who are working to identify the cause of an ongoing outbreak caused by shiga toxin-producing E.coli ( STEC ). The full list of products can be found in the product recall information notice (PRIN). This is a complex investigation, and we have worked swiftly with the relevant businesses and the local authorities concerned to narrow down the wide range of foods consumed to a small number of salad leaf products that have been used in sandwiches, wraps, subs and rolls. Following thorough food chain analysis, these products are being recalled as a precaution. Infections caused by STEC bacteria can cause severe bloody diarrhoea and, in some cases, more serious complications. We therefore advise any consumers who have any of these products not to eat them. The FSA is here to ensure that food is safe. If there are products on the market that are not, we won’t hesitate to take action to remove them.
The UK Health Security Agency ( UKHSA ), together with public health agencies in Scotland, Northern Ireland and Wales, are investigating an increase in the number of Shiga toxin-producing E. coli ( STEC ) cases in the UK in recent weeks.
Infections caused by STEC bacteria can cause severe bloody diarrhoea and, in some cases, more serious complications. It is often transmitted by eating contaminated food but can also be spread by close contact with an infected person, as well as direct contact with an infected animal or its environment.
Whole genome sequencing of samples in the current investigation indicates that most cases are part of a single outbreak. Based on the wide geographic spread of cases, it is most likely that this outbreak is linked to a nationally distributed food item or multiple food items. The source of this outbreak is not yet confirmed but there is currently no evidence linking the outbreak to open farms, drinking water or swimming in contaminated seawater, lakes or rivers. The public health agencies are working with the Food Standards Agency ( FSA ) and Food Standards Scotland to investigate further.
As of 4 June, there have been 113 confirmed cases associated with this outbreak of STEC O145 in the UK, all reported since 25 May 2024:
Typically, we see around 1,500 cases of STEC over a full year. Numbers of confirmed cases associated with this outbreak are expected to rise as further samples undergo whole genome sequencing.
Cases range in age from 2 years old to 79 years old, with the majority of cases in young adults. Of the 81 cases identified to date in England, 61 have provided information to UKHSA related to food, travel and potential exposures and of these we know that 61% have been hospitalised.
While the source of this outbreak is currently unknown, there are steps you can take to reduce your risk of gastrointestinal infections, as well as limiting the spread to others:
Trish Mannes, Incident Director at UKHSA , said:
Symptoms of infections with STEC include severe and sometimes bloody diarrhoea, stomach cramps, vomiting and fever. If you have diarrhoea and vomiting, you can take steps to avoid passing it on to family and friends. NHS.UK has information on what to do if you have symptoms and when to seek medical advice. Washing your hands with soap and warm water and using disinfectants to clean surfaces will help stop infections from spreading. If you are unwell with diarrhoea and vomiting, you should not prepare food for others and avoid visiting people in hospitals or care homes to avoid passing on the infection in these settings. Do not return to work, school or nursery until 48 hours after your symptoms have stopped.
Darren Whitby, Head of Incidents and Resilience at the FSA , said:
The FSA is working with UKHSA and relevant Public Health bodies to identify the source of the illness, which is likely to be linked to one or more food items. We always advise consumers and those looking after vulnerable people to ensure good hygiene practices are followed when handling and preparing food, regularly washing hands with soap and warm water and ensuring equipment, utensils and surfaces foods come into contact with are cleaned thoroughly to prevent cross contamination. You should not prepare food for others if you have had symptoms, or for 48 hours after symptoms stop. You can find more information about good hygiene practises – 4c’s , and E. coli on our website .
Jim McMenamin, Head of Health Protection (infection Services), Public Health Scotland, said:
To help stop infections like E. coli from spreading, we advise regular hand washing using soap and water, particularly after using the toilet and before preparing food. People should also use disinfectants to clean surfaces that may be contaminated. Anyone experiencing severe and sometimes bloody diarrhoea, stomach cramps, vomiting and fever should call their GP or 111 to seek advice. Anyone with diarrhoea or vomiting should avoid attending places such as schools, workplaces or social gatherings until at least 48 hours after their symptoms have ceased.
Wendi Shepherd, Consultant in Health Protection for Public Health Wales, said:
Public Health Wales is working with partners in the UK and across the Welsh NHS to investigate this incident. There are currently 18 cases identified in Wales and healthcare providers have been advised of the increase in cases. We would advise anyone who has experienced bloody diarrhoea or severe stomach cramps to seek medical attention.
Call NHS 111 or contact your GP surgery if:
111 will give you advice. They can arrange a phone call from a nurse or doctor if you need one.
Further information and advice will be published as the investigation continues. Not all outbreak investigations identify a source, particularly for products that quickly leave the supply chain.
Healthcare workers have been informed of the increase in cases and reminded of clinical management guidance.
STEC can be carried by cattle, sheep and other animals. Spread to humans occurs through:
NHS.UK webpage: Diarrhoea and vomiting
For Scotland: NHS Inform advice on diarrhoea or gastroenteritis
Guidance on STEC : symptoms, how to avoid, how to treat
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Since his first day in office, President Biden has called on Congress to secure our border and address our broken immigration system. As Congressional Republicans have continued to put partisan politics ahead of national security – twice voting against the toughest and fairest set of reforms in decades – the President and his Administration have taken actions to secure the border, including:
President Biden believes that securing the border is essential. He also believes in expanding lawful pathways and keeping families together, and that immigrants who have been in the United States for decades, paying taxes and contributing to their communities, are part of the social fabric of our country. The Day One immigration reform plan that the President sent to Congress reflects both the need for a secure border and protections for the long-term undocumented. While Congress has failed to act on these reforms, the Biden-Harris Administration has worked to strengthen our lawful immigration system. In addition to vigorously defending the DACA (Deferred Action for Childhood arrivals) policy, the Administration has extended Affordable Care Act coverage to DACA recipients and streamlined, expanded, and instituted new reunification programs so that families can stay together while they complete the immigration process. Still, there is more that we can do to bring peace of mind and stability to Americans living in mixed-status families as well as young people educated in this country, including Dreamers. That is why today, President Biden announced new actions for people who have been here many years to keep American families together and allow more young people to contribute to our economy. Keeping American Families Together
Easing the Visa Process for U.S. College Graduates, Including Dreamers
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Each year public and private sector maize breeding programs in Kenya deliver high-yielding hybrids that are resistant to drought, pests, and diseases. Yet, most Kenyan maize farmers purchase older, well-known hybrids. While the 'varietal turnover' problem is well known, few solutions have emerged. The potential for seed companies and retailers to influence farmers' product selection towards new products remains an open question. In-store marketing that induces farmers to experiment with new products may be a scalable and cost-effective way to advance seed systems development. Our controlled field experiment with 600 farmers in Kenya comprised a mock agrodealer store stocked with locally available hybrids, where half the farmers who participated faced an out-of-stock situation for their preferred product. The influence of price promotions and product performance information on farmers' seed choice were assessed. When a participant's preferred product was available, performance information and discounts had no effect on decisions. However, when the preferred product was unavailable, the treatments had limited effects on product selection. Prior experience and brand loyalty stood out as the strongest predictors of seed product selection. Our work explored the potential for two interventions—information and price discounts—to influence farmers' product selection. While these interventions showed limited influence on selection, the study design provides a clear starting point for future related experiments. More public and private investments are required to generate timely, comparable, and reliable information on seed performance. The strong effect of brand loyalty favors larger-sized seed companies with sizable marketing budgets.
Update: June 13, 2024: Today, we are communicating an additional update on the Recall (preview) feature for Copilot+ PCs. Recall will now shift from a preview experience broadly available for Copilot+ PCs on June 18, 2024, to a preview available first in the Windows Insider Program (WIP) in the coming weeks. Following receiving feedback on Recall from our Windows Insider Community, as we typically do, we plan to make Recall (preview) available for all Copilot+ PCs coming soon.
We are adjusting the release model for Recall to leverage the expertise of the Windows Insider community to ensure the experience meets our high standards for quality and security. This decision is rooted in our commitment to providing a trusted, secure and robust experience for all customers and to seek additional feedback prior to making the feature available to all Copilot+ PC users. Additionally, as we shared in our May 3 blog , security is our top priority at Microsoft, in line with our Secure Future Initiative (SFI) . This is reflected in additional security protections we are providing for Recall content, including “just in time” decryption protected by Windows Hello Enhanced Sign-in Security (ESS) , so Recall snapshots will only be decrypted and accessible when the user authenticates. The development of Copilot+ PCs, Recall and Windows will continue to be guided by SFI.
When Recall (preview) becomes available in the Windows Insider Program, we will publish a blog post with details on how to get the preview. To try Recall (preview) WIP customers will need a Copilot+ PC due to our hardware requirements . We look forward to hearing Windows Insider feedback.
Today, we are sharing an update on the Recall (preview) feature for Copilot+ PCs, including more information on the set-up experience, privacy controls and additional details on our approach to security.
On May 20, we introduced Copilot+ PCs , our fastest, most intelligent Windows PCs ever. Copilot+ PCs have been reimagined from the inside out to deliver better performance and all new AI experiences to help you be more productive, creative and communicate more effectively. One of the new experiences exclusive to Copilot+ PCs is Recall, a new way to instantly find something you’ve previously seen on your PC. To create an explorable visual timeline, Recall periodically takes a snapshot of what appears on your screen. These images are encrypted, stored and analyzed locally, using on-device AI capabilities to understand their context. When logged into your Copilot+ PC, you can easily retrace your steps visually using Recall to find things from apps, websites, images and documents that you’ve seen, operating like your own virtual and completely private “photographic memory.” You are always in control of what’s saved. You can disable saving snapshots, pause temporarily, filter applications and delete your snapshots at any time.
As AI becomes more prevalent, we are rearchitecting Windows to give customers and developers more choice to leverage both the cloud and the power of local processing on the device made possible by the neural processing unit (NPU). This distributed computing model offers choice for both privacy and security. All of this work will continue to be guided by our Secure Future Initiative (SFI) .
Our team is driven by a relentless desire to empower people through the transformative potential of AI and we see great utility in Recall and the problem it can solve. We also know for people to get the full value out of experiences like Recall, they have to trust it. That’s why we are launching Recall in preview on Copilot+ PCs – to give customers a choice to engage with the feature early, or not, and to give us an opportunity to learn from the types of real world scenario s customers and the Windows community finds most useful.
Even before making Recall available to customers, we have heard a clear signal that we can make it easier for people to choose to enable Recall on their Copilot+ PC and improve privacy and security safeguards. With that in mind we are announcing updates that will go into effect before Recall (preview) ships to customers on June 18.
In line with Microsoft’s SFI principles, before the preview release of Recall to customers, we are taking steps to increase data protection. Copilot+ PCs will launch with “just in time” decryption protected by Windows Hello Enhanced Sign-in Security (ESS), so Recall snapshots will only be decrypted and accessible when the user authenticates. This gives an additional layer of protection to Recall data in addition to other default enabled Window Security features like SmartScreen and Defender which use advanced AI techniques to help prevent malware from accessing data like Recall.
We also know the best way to secure information on a PC is to secure the whole PC itself. We want to reinforce what has previously been shared from David Weston, vice president of Enterprise and OS Security, about how Copilot+ PCs have been designed to be secure by default and share additional details about our security approach. Some notable examples of security enhancements include:
In our early internal testing, we have seen different people use Recall in the way that works best for them. Some love the way it makes remembering what they’ve seen across the web so much easier to find than reviewing their browser history. Others like the way it allows them to better review an online course or find a PowerPoint. And people are taking advantage of the controls to exclude apps they don’t want captured in snapshots, from communication apps or Teams calls, or to delete some or all their snapshots. This is why we built Recall with fine-grained controls to allow each person to customize the experience to their comfort level, ensuring your information is protected and that you are in control of when, what and how it is captured.
We are on a journey to build products and experiences that live up to our company mission to empower people and organizations to achieve more, and are driven by the critical importance of maintaining our customers’ privacy, security and trust. As we always do, we will continue to listen to and learn from our customers, including consumers, developers and enterprises, to evolve our experiences in ways that are meaningful to them.
We are excited for the upcoming launch of Copilot+ PCs on June 18 and for the innovative new features and benefits this entirely new category of PCs will bring. We will continue to build these new capabilities and experiences for our customers by prioritizing privacy, safety and security first. We remain grateful for the vibrant community of customers who continue to share their feedback with us.
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It's been proven that physical activity can improve brain functions like memory and cognition both immediately after a workout and in the long-term. In research with rodents (rats and mice), there's evidence that exercise increases the blood supply to their brains and promotes the growth of new neurons (adult neurogenesis) in the hippocampus, a ...
Get the huge list of more than 500 Essay Topics and Ideas. Conclusion of Importance of Exercise Essay. In order to live life healthily, it is essential to exercise for mental and physical development. Thus, exercise is important for the overall growth of a person. It is essential to maintain a balance between work, rest and activities.
Check out these seven ways that exercise can lead to a happier, healthier you. 1. Exercise controls weight. Exercise can help prevent excess weight gain or help you keep off lost weight. When you take part in physical activity, you burn calories. The more intense the activity, the more calories you burn. Regular trips to the gym are great, but ...
When I chose to stop getting smaller in my physical body, I stopped existing for other people.". Today, I exercise not only for physical but also mental strength. I exercise to feel the ...
When you're tired, depressed, or stressed, it seems that working out will just make you feel worse. But the truth is that physical activity is a powerful energizer. Studies show that regular exercise can dramatically reduce fatigue and increase your energy levels. If you are really feeling tired, promise yourself a quick, 5-minute walk.
Physical activity can help: Reduce feelings of depression and stress, while improving your mood and overall emotional well-being. Increase your energy level. Improve sleep. Empower you to feel more in control. In addition, exercise and physical activity may possibly improve or maintain some aspects of cognitive function, such as your ability to ...
mechanics of barefoot running and its effect on injury rates, and is a barefoot runner herself. Along with gait analysis, her research encompasses dynamic imaging and modeling. She has received funding from the Department of Defense, Army Research Office and National Institutes of Health to support her research related to stress fractures.
Physical activity has many well-established mental health benefits. These are published in the Physical Activity Guidelines for Americans and include improved brain health and cognitive function (the ability to think, if you will), a reduced risk of anxiety and depression, and improved sleep and overall quality of life.
Published May 12, 2021 Updated May 17, 2021. Our exercise habits may influence our sense of purpose in life and our sense of purpose may affect how much we exercise, according to an interesting ...
Regular physical activity, such as brisk walking, walking, can improve your quality of life relieve stress, tension, anxiety and depression. You may notice a "feel good" sensation immediately following your workout. You also may see an improvement in overall well-being over time as physical activity becomes a regular part of your life.
When you work out (aka move) every day, you're keeping the body efficient for movement. "Kind of like that saying, you don't use it, you lose it ," NASM-certified personal trainer Jason Williams, NASM-CPT, tells mbg. 2. It promotes fascia elasticity. Fascia is a connective tissue that serves a number of purposes in the body—including ...
Commonly, exercise therapy is recommended to combat these challenges and preserve mental wellness. According to empirical investigations, physical activity is positively associated with certain mental health traits. In nonclinical investigations, the most significant effects of physical exercise have been on self-concept and body image.
Conclusion. Exercise is all-inclusive package that will enable you live almost a stress-free life, full of energy with improved self esteem and sound sleep not forgetting how you will be able to combat some diseases like hypertension and diabetes type II. During exercise, the body releases endorphins that restore peace and felicity.
Health effects of physical activity in many cases follow a dose-response relationship; dose of physical activity is in proportion to the effect on health [59,60]. Figure 2 depicts the relationship between risk of death and level of physical activity, in a Finnish twin cohort, adjusted for smoking, occupational group, and alcohol consumption ...
Here are some other benefits you may get with regular physical activity: Helps you quit smoking and stay tobacco-free. Boosts your energy level so you can get more done. Helps you manage stress and tension. Promotes a positive attitude and outlook. Helps you fall asleep faster and sleep more soundly.
Energy loss. Chronic colds, infections and other illnesses. Insomnia. Weight gain. Stamina decline. For women, a loss of their period ( amenorrhea ). Athletes often think they need to train harder ...
Exercise is the cheapest and most useful tool for not only stress, but for many other things. For me, when I exercise, I get a feeling of comfort and relaxation. My whole body changes into a more calm and care-free 'structure'. Exercise makes life more enjoyable and fun. True enjoyment comes from activity of the mind and exercise of the ...
Long Essay on Benefits of Exercise 500 Words in English. Long Essay on Benefits of Exercise is usually given to classes 7, 8, 9, and 10. We have always heard the word 'fitness' and 'health'. We use it ourselves when we say such phrases like 'fitness is the key' and 'health is wealth'. The word health means the idea of 'being ...
In addition to working papers, the NBER disseminates affiliates' latest findings through a range of free periodicals — the NBER Reporter, the NBER Digest, the Bulletin on Retirement and Disability, the Bulletin on Health, and the Bulletin on Entrepreneurship — as well as online conference reports, video lectures, and interviews.
In addition to working papers, the NBER disseminates affiliates' latest findings through a range of free periodicals — the NBER Reporter, the NBER Digest, the Bulletin on Retirement and Disability, the Bulletin on Health, and the Bulletin on Entrepreneurship — as well as online conference reports, video lectures, and interviews.
Before using a test, check its expiration date. If it's past the date, you can see whether it's still usable by going through the F.D.A. database of tests. Be mindful in the summer months ...
The main purpose of this paper is to examine the relationship between leadership styles and Gen-Z workforce performance. A disproportionate stratified random sampling technique was used to select respondents from private secondary schools in Ogun State, Nigeria. Given a sampling frame of 1300 Gen-Z employees, this study adopted Cochran (1977) sample size method to analyse 279 usable ...
Public Health Wales is working with partners in the UK and across the Welsh NHS to investigate this incident. There are currently 18 cases identified in Wales and healthcare providers have been ...
The Biden administration on Tuesday will announce an executive action allowing certain undocumented spouses and children of US citizens to apply for lawful permanent residency without leaving the ...
The new policy is one of the most significant actions to protect immigrants in years. It affects about 500,000 people who have been living in the United States for more than a decade.
including DACA recipients and other Dreamers, who have earned a degree at an accredited U.S. institution of higher education in the United States, and who have received an offer of employment from ...
Each year public and private sector maize breeding programs in Kenya deliver high-yielding hybrids that are resistant to drought, pests, and diseases. Yet, most Kenyan maize farmers purchase older, well-known hybrids. While the 'varietal turnover' problem is well known, few solutions have emerged. The potential for seed companies and retailers to influence farmers' product selection towards ...
All of this work will continue to be guided by our Secure Future Initiative (SFI). Our team is driven by a relentless desire to empower people through the transformative potential of AI and we see great utility in Recall and the problem it can solve. We also know for people to get the full value out of experiences like Recall, they have to ...