Keep doing whatever you’ve been doing because it’s working. Whatever physical activity you can do, do it as often as possible. If you’re not already doing strength training, ask your medical providers if they can recommend any strength training programs specifically for your age group because you can add muscle mass at any age. If you want to enjoy an active life well into your 90s, it is important that no matter what happens to you, never stop exercising. Even if you can do only a few minutes at a time, regular exercise and physical activity can still provide important health benefits.