Public health measures
Multiple component community-wide campaigns are frequently used in an attempt to increase a population's level of physical activity. A 2015 Cochrane review, however, did not find evidence supporting a benefit.[80] The quality of the underlying evidence was also poor.[80] Survery of brief interventions promoting physical activity found that they are cost-effective, although there are variations between studies.[81]
Environmental approaches appear promising: signs that encourage the use of stairs, as well as community campaigns, may increase exercise levels.[82] The city of Bogotá, Colombia, for example, blocks off 113 kilometers (70 mi) of roads on Sundays and holidays to make it easier for its citizens to get exercise. These pedestrian zones are part of an effort to combat chronic diseases, including obesity.[83]
To identify which public health strategies are effective, a Cochrane overview of reviews is in preparation.[84]
Physical exercise was said to decrease healthcare costs, increase the rate of job attendance, as well as increase the amount of effort women put into their jobs.[85]
Children will mimic the behavior of their parents in relation to physical exercise. Parents can thus promote physical activity and limit the amount of time children spend in front of screens which may decrease the risk of childhood obesity.[86]
Worldwide there has been a large shift towards less physically demanding work.[87] This has been accompanied by increasing use of mechanized transportation, a greater prevalence of labor saving technology in the home, and less active recreational pursuits.[87] Personal lifestyle changes however can correct the lack of physical exercise.
Research in 2015 indicates integrating mindfulness to physical exercise interventions increases exercise adherence, self-efficacy and also has positive effects both psychologically and physiologically
Other animals[edit]
Physical exercise has been shown to benefit a wide range of other mammals, as well as salmon, juvenile crocodiles, and at least one species of bird.[94]
However, several studies have shown that lizards display no benefit from exercise, leading them to be termed "metabolically inflexible".[95]
A number of studies of both rodents and humans have demonstrated that individual differences in both ability and propensity for exercise (i.e., voluntary exercise) have some genetic basis.

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