I'm fifteen and I plan on going back to the gym on Tuesday... I used to go five days
a week but I was told that could hurt my growth... Any insight towards that? How
often should I work out?!
yes, it can hurt your growth.
you could go every single day of week! the problem is not if you go often there.
the problem is what you do there!
There´s machines to work the legs that can´t do & you can´t lift weight too much heavier for you at least for example if you are doing biceps with dumbells standed on the ground, it can hurt your back if it´s too much weight for you.
Anyway, talk with your trainer at the gym about it & he/she will know what to say.
Just an advice...If I was your age, I would start to do only swimming until like the 18-20 & then you could start with the gym, with the swimming you can work legs, backs, chest, everything! just my opinion.
Well, I started actually with the gym when I was almost 18, but now Im not doing gym, but during that time I was aware about what I couldnt do at the gym because of the growth problem.