Im 13 and when im older I wont to become a personal fitness trainer or some thing along them lines but how do I become one??!!
PLUS adding on to that can I still become a fitness trainer if I wear glasses :/
you can become a fitness trainer with glasses. if not, then just get some contacts.
you'll have to know everything about nutrition as well as, of course the fitness aspects. you will need to know biology and how the body works basically.