Can you lift heavy weights at age 12?

Answer 1

No. Lifting every day can damage the muscles and stunt a 12 year old's growth. You should try every other day or 3 times a week. Or do different upper-body excersisess.

Answer 2

Yes, this is old enough. Lifting will not stunt your growth as the myth grows. Just make sure you do it correctly, and get supervision at first.