Another danger, that many young people don't want to
acknowledge, is that there is an age where weight lifting is not
advisable. When you are very young, your body has not yet fully
matured. By lifting weights in your early or even late teens,
actually inhibits bone growth because of the pressure put on the
bones when lifting. Also, you are more likely to suffer a serious
injury when you are younger because your body has not fully
developed yet. Children younger than 17 years of age should not be
lifting weights, certainly not heavy ones.