Stretching has many benefits! Stretching is a self-exercise method to stretch the waist, exercise muscles and relax the spine, which has many benefits. Stretching is a common small action, which has many effects on human body, one of which is to promote blood circulation. Because it can stretch most muscles of the whole body, it can pump a lot of blood into the heart in a short time, increase blood circulation, improve blood circulation, and thus promote human health. Friends who are engaged in mental activities can do more stretching exercises every day at rest, because this can make the neck blood vessels transport blood to the brain comfortably, so that the brain can get enough nutrition, thus eliminating fatigue and refreshing the mind. Moreover, stretching and yawning when the human body feels sleepy can make people refreshed and continue to work. Stretching can also promote human metabolism. It can make the waste in the human body excrete quickly, thus making the human body develop in a healthy direction.