Not stretching after exercise will not only make the muscles pile up unsightly, but also make the muscles lose their elasticity and flexibility and slow down the speed of muscle recovery.

For example, warm-up before exercise is to give instructions to your body, telling it that you should do intensive activities, and your cells should be active to avoid being injured during exercise, while stretching is the end signal sent to your body after exercise, telling it that you are over, relax your muscles and don't keep tense and congested all the time. Some people find that their legs are thick after running, which is an illusion caused by muscle congestion. They must stretch carefully, cooperate with food supplement and adequate sleep, and give their muscles some time to recover and adjust.