I am a busy college student and I used to ask myself the same question. The answer is that you don't get the time time exercise, you must make the time to exercise if you really want to get healthy. I never used to workout and now I make it part of my daily routine becuase it makes me feel good. The thing is, you don't have to workout everyday to get healthy. If you are doing the right exercises a few times a week, you can get the same results. I found this website called builtlean.com and it talks all about this. Marc Perry, this personal trainer and fitness expert tells you what exercises to do, how often to do them, how to eat well, when to eat, and other really informative things. I think it's really worth checking it out. Good luck with everything and I hope this helps!