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 engage in activities like exercise, laughter, or even eating certain foods, your body releases endorphins, which can improve your mood and overall well-being. These chemicals work by binding to opioid receptors in the brain, which helps to block pain signals and promote a sense of pleasure. Endorphins play a crucial role in the body's response to stress and can help enhance feelings of relaxation and contentment.