about the benefits of physical activity
Reduced risk of obesity
Evidence is mounting that a reduction in levels of physical activity is a major factor in the increase of obesity. There are several studies that show the benefits of an active and fit lifestyle for the prevention of obesity. In particular, activity appears to help protect against the weight in typical of middle age.
Reduced risk of heart disease
People with an active lifestyle and a moderate level of fitness are half as likely to develop heart disease as their couch-potato peers. Obese people who are active have a reduced risk of heart disease and diabetes compared to their obese counterparts who do not exercise.
Diabetes
A lack of activity can be a risk factor for the development of Type 2 diabetes. Very active individuals have a 33-50% reduction in the risk of developing diabetes. And in people with diabetes, exercise has been shown to help control blood sugar levels.
Reduced risk of cancer
Moderate to vigorous physical activity reduces the risk of colon, colorectal, lung and breast cancers.
Muscle and bone health
Regular exercise leads to stronger muscles, tendons and ligaments and more dense bones. Weight bearing exercise has been found to improve bone density in adolescents, help maintain density in adult bones and slow the loss of bone mass that commonly occurs with age (osteoporosis).
Mental health
Several studies show that physical activity improves psychological well-being, the way in which we deal with stress and mental functioning (such as decision making, planning and short-term memory), reduces anxiety and promotes healthy sleep patterns. Evidence from clinical trials shows that exercise can be used to treat depression. In older people, physical activity may help to reduce the risk of dementia and Alzheimer's disease.
Adding years and quality of life
Regular physical activity has been found to add years to our lives (by reducing the risk of disease and ill health) and to add life to our years by improving quality of life (better mental health and improved flexibility and stamina).
