I don't lift, mostly because at one time I did and I didn't gain any muscle in my arms at all after half a year. I have all my muscles in my legs, I'm seriously the fastest kid in my grade, I can jump about 2 feet when I want, and can kick about anyone I know onto the ground with 1 kick to the front of the shins. I still go for jogs 3 days a week, and do push-ups every night but I still don't gain any uper body strength >:O