It can’t be emphasized enough: engaging in physical activity is the single most important thing you can do to maintain mobility and independence, no matter your age or your health status. It can help you control your weight. It’s the key to keeping your muscles and bones strong, your joints working properly, your heart healthy, and your metabolism revved. The more you move, the better your strength and balance will be, and the less likely you will be to fall or lose the ability to perform basic daily functions. And that’s on top of all the other health benefits of regular exercise, such as reduced risks of cardiovascular disease, type 2 diabetes, and some cancers. Exercise even has positive effects on mood and may help improve cognitive function.
Source: Harvard Newsletter: Healthbeat