People who are healthier have more muscle mass but adding muscle mass doesn't make you healthier. Muscle mass is a signal of health not a cause. You can look a

People who are healthier have more muscle mass but adding muscle mass doesn't make you healthier. Muscle mass is a signal of health not a cause. You can look at bodybuilding lifespan for proof. Lots of bodybuilders die young despite adding on enormous amounts of muscle. You can see the same with testosterone. Men with higher testosterone live longer but giving people testosterone doesn't increase lifespan.