The Gale Encyclopedia of Diets: A Guide to Health and Nutrition
More than 28 percent of Americans are completely (they engage in no physical activity), with an additional 60 percent being inadequately active (engaging in less than 30 minutes of activity per day). For those who strive to achieve and maintain a high quality of health, it must be recognized that physical activity is vital to optimal health. This is reaffirmed by numerous studies that have found an association between physical activity, health, longevity, and an improved quality of life. In addition, the number of deaths related to sedentary living or is approximately a half-million per year. Physical activity may impact quality of life in several ways: it can be used to improve self-image and self-esteem, physical , and health.