Why do muscles need to lift weight to grow?

Question

As opposed to the human body controlling muscle growth from within?

In: 76

Answer 1

It’s important to remember we didn’t evolve in the world of abundance we now have in rich countries. Our bodies evolved to be able to survive scarcity. When humans weren’t guaranteed food every day. So everything is use it or lose it.
You’re using it? Then that means we need it to survive. You’re not using it? Then why are you wasting resources maintaining it? Just get rid of it.