What physical activity is best for healthy longevity?
The one you enjoy most, but also the one you can easily incorporate into your daily schedule and the one you can keep doing up to your hundredth birthday and beyond. . . . What’s important is working all your body parts with rigor — meaning to the point of breathing rapidly or sweating — for five to ten hours a week . . . It’s important to exercise, but not to overexercise, because knees, hips, and joints will eventually get damaged — particularly if you continue to exercise when you feel pain.