Here’s the truth: the idea that weightlifting stunts your growth is a myth. Multiple studies have looked at this directly, and the results are consistent — resistance training programs did not affect height growth in pre-teen and early teenage youth. Your bones keep doing their thing regardless of whether you’re hitting the gym.
Mayo Clinic put it plainly: in the past, people worried that strength training might negatively impact a teen’s growth, but recent studies have found that growth is simply not affected. KidsHealth backs this up too — when done properly, strength training won’t hurt growing bones.
The key phrase there is ‘when done properly.’ This is especially important for younger teens (ages 12–14): start with bodyweight exercises or lighter resistance to learn the movements before going heavier. Good form matters at every stage. Having someone experienced — like a coach, trainer, or knowledgeable adult — show you the right technique before you start lifting is the move. A spotter (someone watching and ready to help) is especially important when using barbells or heavier weights, so you’re not at risk of dropping something on yourself.
The takeaway is simple: strength training is generally safe for teenagers, it won’t make you shorter, and done right, it’s actually good for you. Don’t let an old myth keep you out of the weight room.