The four functions of muscle are to maintain human activities, connect bones and joints, protect human tissues and shape a beautiful body, consume glycogen and maintain body temperature, which is very important to the human body.

1. Maintain human activities: muscles are composed of tendons and muscle abdomens, and muscles in different parts of the human body have their own functions. Skeletal muscle can help people to exercise, make people do activities such as running, walking and jumping, and the contraction and relaxation of myocardium can also transport blood to the body and maintain normal activities of the human body. Gastrointestinal smooth muscle can transport food.

2, connecting bone joints: the muscles of the human body can also connect the joints in the body, and the contraction and relaxation of muscles can also pull the bones to produce joint movements, thus completing various actions;

3. Protect human tissues: The muscles in the human body also protect human tissues such as bones, internal organs and blood vessels, which can protect human organs and reduce the impact caused by external forces when the human body is hit by external forces;

Fitness is a very good way of life and has always been popular with people. People of all ages are keen on fitness. Fitness can not only achieve the purpose of strengthening the body, but also lose weight and make the whole person in a better state.

With the improvement of living conditions, people pay more attention to their health, which is why so many people choose to exercise now. Regular exercise can also promote blood circulation in the body and accelerate the improvement of physical fitness in all aspects.

So what are the benefits of fitness?

First, fitness can enhance immunity, and moderate fitness can enhance resistance and reduce the possibility of getting an epidemic.

Second, be the best bodyguard for your cardiovascular system.

Third, take you away from cancer.

Fourth, forgive your pain.

Five, give you a happy attitude.

Research shows that people who exercise regularly are half as likely to catch a cold as those who don't exercise. Another study mentioned that both aerobic training and strength training can increase the number of immune cells in the body, mainly because they increase the number and activity of immune cells in the body. However, excessive exercise can reduce resistance in a short time. Contestants can adjust their bodies and enhance their resistance through timely rest and scientific diet.