1. There is no difference between stronger, larger, and firmer muscles. Those three go hand in hand. It is simply untrue that one kind of exercise will build a different kind of muscle than another. The only three variables you can influence with any type of exercise are: muscle mass, muscle shape, and the amount of body fat.

2. Each pound of muscle (1 pound = 0.45 kilograms) burns 75-100 calories every day simply by being.

3. A pound of body fat stores 3500 calories.

4. Your muscles do not grow during exercise. Exercise is only the stimulus. The body strengthens the muscles while you are resting.

5. The amount of rest needed in order for muscles to grow depends on their current size. The larger it is, the more it needs to rest. Gym beginners should rest at least two days between exercise. After a year in the gym you should probably rest three days. And so on. By exercising every day you are hurting your body and retarding muscle growth.