What major, and career later on, would be good for someone that is very interested in fitness and how the body works? I can't really handle giving shots or cutting people open, but I am very interested in how the body works. I was thinking like Physiology and then maybe do research as a career? I don't know how realistic a career in fitness would be though. I don't want to be a personal trainer and have the stress of having to find and keep clients...