Exercise itself can promote endocrine changes in the human body, the brain produces a substance called endorphins after exercise, and the mood of a person is good or bad, related to the amount of endorphins secreted from the brain. Exercise can stimulate the secretion of endorphins, so that the secretion of endorphins increases, and under the stimulation of endorphins, the human body and mind are in a relaxed and happy state. Endorphins are also known as "happy hormones" or "youth hormones", which can make people feel happy and satisfied, and can even help people to get rid of stress and unhappiness.

Not all sports can produce this effect, the secretion of endorphins need a certain exercise intensity and a certain exercise time, in order to make it secreted, and now generally believe that the moderate intensity of the exercise, such as gymnastics, running, hiking, badminton, etc., exercise for more than 30 minutes in order to stimulate the secretion of endorphins. That's why you feel especially comfortable after sweating. A slow walk does not achieve the above effect, but walking can divert one's attention, soothe depression or tension, and achieve the effect of reducing depression.

Endorphins are similar to morphine, which makes people feel especially comfortable and happy, so people enjoy the comfortable, relaxed state after exercise, and the body and mind are released!