[ELI5] If you get big strong muscles from microtears, then how come we can’t just put something in the body to rip it artificially

Question

[ELI5] If you get big strong muscles from microtears, then how come we can’t just put something in the body to rip it artificially

In: Biology

Answer 1

I’m no scientist so don’t take my word, but I think we just don’t have anything small enough to make such a widespread amount of micro tears, aswell as precisely.