... what your age, you can increase your muscle mass, speed up your metabolic rate, reduce your body fat percentage, improve your aerobic capacity, and lower your cholesterol. Do these, and guess ... sleeping, your body actually uses up a lot of energy just to keep your heart beating, your brain functioning, nerves transmitting, and so forth. This energy comes from glucose stored in your blood.Come ... carbohydrates causes the glucose level of your blood to soar, and your pancreas produces a large spike of insulin. Insulin helps move the glucose out of your blood and into your cells. This system works...