Health & Science

Stay Active for a Healthy Heart

People in their 70s can likely lower their risk of stroke and heart attack with regular moderate exercise such as walking, according to a Tufts study, which provides some of the first evidence that continuing to exercise as we age really does make a difference.

The cause of nearly a third of all deaths, cardiovascular disease is the number-one killer worldwide, according to the World Health Organization. In the United States, more than a third of all adults have some form of the disease, including about half of people over age 60.