Cardio workouts can burn a lot of calories. Today I rode my bike for an hour and a half and burnt about 1200 Calories. That said, I'm a bit fitter than the aver

Cardio workouts can burn a lot of calories. Today I rode my bike for an hour and a half and burnt about 1200 Calories. That said, I'm a bit fitter than the average unfit person, and can therefore sustain a considerably higher power output and use more energy. Oh, and there's a big difference between pushing yourself on hilly roads and sitting on a bike in the gym reading a magazine. Weights are good too, and they're much better at making one look fit (upper body especially). Oh, and good on you Ryan. I've seen some around here talk about how it's worth sacrificing one's health for a startup. It's good to see not everybody shares that belief.