(HealthDayNews) -- Despite the proven benefits of physical activity, more than 50 percent of American adults don't get enough exercise, according to the U.S. Centers for Disease Control and Prevention.
Physical activity usually decreases with age; women, people with lower incomes, and those with less education tend to exercise less.
The CDC says regular physical activity substantially reduces the risk of dying of coronary heart disease -- the nation's leading cause of death. It also lessens a person's risk for stroke, colon cancer, diabetes and high blood pressure.
If that isn't enough to convince you to leave your couch, here's another thought: Physical activity does not need to be strenuous to be beneficial. People of all ages benefit from regular, moderate-intensity physical activity, such as 30 minutes of brisk walking five or more times a week.
