If repeated cellular damage can cause cancer but that’s also how muscle is built, why isn’t weight lifting a cancer risk?

Question

To build muscle you are tearing the muscles and letting it heal. Does this not increase risk of mutations that might turn into cancer like how repeated damage to skin or lung cells can cause cancer?

I don’t think it is a cancer risk but I would like an explanation as to why.

In: Biology

Answer 1

Cancer is less about cellular damage and more about protein damage.

Repeated cellular damage does cause an increase in replication, which can lead to cancer risks, but not nearly as much as carcinogenic factors, which can damage the actual DNA of a cell, and make it replicate without stopping.