Store blood sugar: when muscle contracts, it will bring blood sugar from blood vessels into muscle cells and convert it into liver sugar. What does this mean? Simply put, muscle exercise can make blood sugar more stable, and glycogen in muscle can provide a steady stream of energy, which will make people more endurance, physical strength and momentum. On the other hand, people with muscular atrophy and obesity are listless and panting after a little activity. Regulating blood oxygen: Muscle contains myoglobin, which can store oxygen at ordinary times. When the oxygen in the blood is insufficient, oxygen will be released into the blood, so as to avoid dizziness and other symptoms caused by insufficient blood oxygen. Because muscles can store oxygen, they don't need to rely entirely on oxygen in the blood when contracting. In other words, the more muscles and oxygen a person has, the more efficient the biochemical reaction of the whole body will be. Not only the more physical strength, but also the healthier the major organs will be. Improve metabolic rate: people with more muscles have faster metabolism, higher body temperature and are not afraid of cold. On the contrary, fat seems to keep warm, but in fact it is easy to get sick because of slow metabolism, low body temperature and fear of cold. And the more muscles there are, the easier it is to burn fat, and the less excess fat there will be. So people who want to lose weight must find ways to increase the muscle mass of the whole body. The most important exercise for dieters is definitely not running, but muscle training. In addition, muscles can also protect joints. If the muscles are weak, the joints will be easily sprained or dislocated, so the core muscles and small muscles next to the joints must be strong to avoid spraining or flashing to the waist. If the old people have strong muscles and flexible joints, they will not fall down easily, and it will be easier to maintain their physical fitness.

Exercising muscles can promote the secretion of growth hormone and muscle hormone.

Old muscle cells are like aging rubber bands, which will break when they contract or pull during exercise. It is worth mentioning that when muscle cells break, the pituitary gland secretes human growth hormone (hGH) to promote the formation of new muscle cells. Earlier, we talked about the benefits of growth hormone, which is needed for the growth and development of children and adolescents. Adults need it to stay young, so this is one of the main reasons why people who exercise look younger and healthier. (Editor's recommendation: You are getting younger and younger after 50 years old! Three gymnastics necessary to activate the hormone of rejuvenation)

Growth hormone is the commander-in-chief of the whole body hormones, and it can almost be said to be an "anti-aging hormone", which can greatly reduce serum cholesterol and triglycerides, improve muscle strength, quantity and endurance, increase bone density, reduce body fat, improve sexual ability, improve physique, enhance immunity, improve skin elasticity and luster, stabilize mood and improve memory. However, growth hormone is also the fastest declining hormone in the human body. Generally, the secretion of growth hormone will be halved until the age of 60, while the secretion of growth hormone will be halved until the age of 30. Although growth hormone can be injected now, I don't recommend ordinary people to do so, but encourage readers to do more exercise to promote the secretion of growth hormone.