Well. I play soccer so i have to stay in my top level of fitness for a whole season. So thats a motivation. Then I want to stay in good shape for Health reasons too. I also want to look better then the opposite sex

nah Jk I look like Steve Urkle!
just without the crazy science stuff. Im not good at that
But the major motivation for me is to keep good health untill the day I die. Well maybe till my late 60's when ill stop and just enjoy life for what it is.