What is the primary function of endorphins in the human body?

Endorphins are neurotransmitters produced by the central nervous system and the pituitary gland. Their primary function in the human body is to relieve pain, similar to the effects of morphine. When the body experiences pain or stress, it releases endorphins to counteract these sensations, providing relief and sometimes even producing feelings of euphoria. This is particularly evident during activities such as exercise, when endorphin levels increase, leading to what many refer to as a "runner's high."

While regulating sleep, enhancing memory, and improving appetite are important functions associated with other hormones and neurotransmitters, they are not the primary roles of endorphins. Instead, endorphins are specifically tied to pain modulation, playing a crucial role in the body’s natural pain management system.