Endorphins are natural chemicals produced by the body that help relieve pain and reduce stress. They are often referred to as "feel-good" hormones because they can create feelings of happiness and euphoria. When you exercise, laugh, or even eat certain foods, your body releases endorphins, making you feel more relaxed and cheerful. These powerful substances are part of the body's way of coping with pain and discomfort. For example, when you experience physical activity, like running or dancing, your brain releases endorphins to help you push through the challenge. This is why many people feel a "runner's high" after a good workout, as the endorphins boost their mood and energy levels.