Just read this👇🏻 #oldladygains Posted by @leansquad Can you do this?! My 80-year-old nanny recently took on a challenge designed for women in their 40s to 50s: carrying 75% of their body weight for one minute. If you can do it, it’s one of the best predictors of living a long, capable life. Why is this such an accurate predictor of longevity? Because strength and muscle mass go hand in hand. As we age, muscle mass declines significantly, which is why it’s crucial to do everything we can to pre