Bodybuilding has no effect on height. It will not help you to grow taller, nor will it make you shorter. The idea that exercising as a child can stunt your growth is also untrue (though there is a caveat to this).

Does gaining muscle make you taller?

Build and strengthen your muscles

A quick online search for exercises to make you taller may yield some seemingly promising results, but the truth is there are no exercises that will make you grow once you've reached your max height. Gaining muscle mass and strengthening your muscles can support better posture.

Is Gym bad for height growth?

Dr. Rob Raponi, a naturopathic doctor and certified sports nutritionist, says the misconception that lifting weights stunts growth likely stems from the fact that injuries to growth plates in immature bones can stunt growth. ... But it's not the result of lifting weights correctly.