Endorphins increase basal metabolic rate. increase muscle mass. reduce appetite. reduce carbohydrate cravings.

The answer is "Endorphins reduce appetite." Endorphins are hormones that are released when you exercise. They have several benefits such as decreasing appetite, reducing stress, blocking pain, and simulating euphoria. The more exercise you do, the more endorphins you release. This means that more endorphins stay in your blood which makes it easier to do longer periods of exercise.