I'm pretty ignorant of the details of training/diet. I understand the basics maybe, probably not as much as I think although. So, please, tell me what I am doing to myself by living this sort of life: I average between 2000 - 2300 calories per day, and I know this with certainty. I have a pretty even split between carbs and proteins, with a bias towards carbs, and roughly 20% from fats. My weekly routine has 5 days of activity, and 2 days of rest: 2 days, I do sprints consisting of running ~60 yards at a 60-70% VO2 max, then ~40-50 yards of sprinting at 85-90% effort, rinse and repeat for 20 minutes. 2 days, I lift, mostly doing 4x9, a couple tabata, one body weight for a total of 7 different exercises, which takes me 45-50 minutes. I'm not really looking to get bigger or stronger atm, though that is something I'll pursue in the future for certain (I have it planned to begin in Fall of 2011). 1 day, I run 2 miles (11 minutes), then skip rope for about 10 minutes. I am 5'11, and I weigh 180 lbs.