It’s never too late to get physical

Studies have shown that physical activity can improve the health of people of all ages, and there's already a body of research showing that exercise can actually extend the life of middle-aged people. But what about older adults? Is there an age when physical activity may do more harm than good?

The answer is no, according to a new study. Researchers for the Jerusalem Longitudinal Cohort Study followed 1,861 Israelis who were 70 years old in 1990 for 18 years and examined mortality data, health, and the ability to perform daily tasks independently. The researchers found evidence that starting or maintaining a physical activity regimen of at least 4 hours a week can improve function and longevity, even for the oldest adults. The results also suggest that being physically active may play a role in reducing falls and fractures in old age.

The main benefits appear to come from a combination of factors, such as improving cardiovascular fitness, slowing age-related muscle loss, reducing body fat, and improving immunity. Whatever the cause, physical activity among seniors over 70 led to longer, more functional, and more independent lives. When it comes to physical activity, the study's authors say, "It seems that it is never too late to start."