Never work out on an empty stomach . . .Â
1) Your heart is about the size of your fist, and weighs about as much as a softball;
2) Every one of your muscle fibers is thinner than a human hair strand, yet can hold up to 1,000 times its own weight;
3) If you work out on an empty stomach, your body will burn muscle tissue when you run out of energy — and not stored body fat.
