I know you all hate cardio, but hopefully I can get some help here.... The semester is finally coming to an end and I think I'm in the worst health I've ever been in. I'm 6'5" and from March through July I dropped from 225 lbs to 195 lbs. After losing that weight I clean bulked for a little while up to about 205-ish and I was in great shape around late August. But as the semester went on I had less time to work out, less time to prepare meals, more time on the computer working, more time at work, and a whole lot less time getting rest. There's been all-nighters after all-nighters and it's really caught up to me. I don't really know how to describe it other than poor health. On top of that, I ate fast food/vending machine food on a pretty regular basis. I still weigh in at ~205 but I lost whatever muscle mass I had and but it back on in fat. All my pants are size 36 waste. In July I was easily a 34, but now I'm back at 36 and I'm in danger of outgrowing my clothes. Basically what I want to do is like a 4 week detox. I want to be eating a litlte above maintenance calories, lots of lean proteins and greens and whole grains, lots of water, lots of exercise, and lots of rest. This is accomplishable now that the semester is almost finished, and I'd like to do it now before I have to take on the load of another semester. It'll probably be my last chance to get down to a reasonable weight before summer bulking. I remember a while back someone posted a good cardio routine where you start at a certain percentage of your MHR and work up the time, then raise the percentage of your HR and lower the time and gradually build the time back up again. My cardiovascular health right now is nil. I haven't ran in nearly a year and I'm sure I'll be struggling to run at a decent pace for 15 minutes. How often should I be running in order to avoid overtraining? Anything else I should know about before I start this?