I tried the 6 exercises longevity experts hope can slow aging. Here's how to do them at home. There are only six moves in this longevity-focused strength-training routine. Hilary Brueck, Business Insider Researchers are testing a new 6-move strength-training routine for healthy aging. The program doesn't require any weightlifting and can be adapted for any fitness level. People in the trial have been getting stronger and more nimble. Most longevity scientists and doctors agree that one habit is better than any drug or supplement for healthy aging: Exercise. Researchers are still piecing together exactly why exercise supports longevity. Still, it appears to benefit not only fitness and metabolism, but also improve how our cells operate. Plus, exercise lowers a person's risk of developing age-related diseases like cancer and dying early. It also boosts mental health. How do you exercise for longevity?…