The reason why people get old is that with the increase of age, especially after the age of 20, basal metabolism decreases and excess calories begin to accumulate fat, which is the reason for getting fat.
The average person's muscle mass at the age of 50 is only 50% of that at the age of 25. What a tragedy! So the purpose of our fitness is to keep our muscles. Muscle content, good physical fitness, good skin, good energy, looks young and energetic.
Aerobic training can enhance the body's ability to absorb and utilize oxygen, that is, increase the maximum oxygen intake of the body, make the heart stronger, actually make the heart bigger, increase the contractility of the heart, lower the heart rate, help the body maintain vigorous energy, increase the number of capillaries and mitochondria in the body, promote the blood circulation of the brain and delay the aging of the central nervous system. People who insist on aerobic exercise for a long time consume about 20% more oxygen than ordinary people, which is equivalent to subtracting the actual age 10 years old.
Aerobic training can improve heart and lung ability. Simply put, it is to exercise the myocardium and improve the contractility and oxygen carrying capacity of the heart. Stimulating gastrointestinal peristalsis during exercise can stimulate the digestive system of the body and make the body discharge waste.
Fitness training improves the body's muscle mass, and can still maintain sufficient muscle mass and strength under the condition of muscle reduction. During exercise training, human bones will be oppressed by external resistance. Reasonable calcium supplementation after exercise can improve the bone mineral density of human bones and reduce the risk of fracture in the elderly.
In fact, many people feel that they are old, which is actually a psychological change. The change of face and the decline of physical function make them feel insecure and old. Then, in fact, the problem lies in psychological self-confidence. Scientific fitness can relieve the function of the body, make the spirit of the face stronger, make the body stronger, be natural and confident, and not feel old.
Fitness can well control the increase of body fat and keep the fat within a reasonable range. Fitness diet is also very healthy, controlling fat and diet, reducing the risk of illness, and indirectly delaying aging.
Fitness has greatly improved physiology, psychology and pathology, so in theory, fitness can delay aging appropriately.