What is runner’s high?
A runner’s high is that feeling of euphoria (a feeling of intense joy and happiness) while exercising. This is when pain turns to pleasure. Running, cycling or any aerobic exercise (moderate-intensity endurance exercise) causes the hormone endorphin (similar to morphine) to be released by the pituitary gland in the brain to alleviate pain. This gives you a feeling of happiness and pleasure. It is relatively short-lived though....