Many careers, like mine, involve quite a lot of time sitting on your butt in an office. I am worried about the long term effects this will have on health. For instance will I get a big ass from sitting so much, or depressed? Sometimes I do feel depressed sitting in such cloistered environment, and I feel isolated. If I follow an exercise regimen after work like 30 minutes of cardio and wight lifting 4x a week will I stay OK? What do you guys do? Thanks.