Final answer:
Exercise increases endorphins, which can help reduce pain and promote a sense of pleasure and happiness.
Step-by-step explanation:
Exercise often makes people feel more energetic and experience a feeling of increased well-being. One of the main reasons for this is that exercise increases endorphins. Endorphins are chemicals in the brain that act as natural painkillers and mood elevators. When we exercise, our body releases endorphins, which can help reduce pain and promote a sense of pleasure and happiness.
Learn more about Effects of exercise on pain reduction and pleasure