Why does exercise prevent disease?

shuye 2020-8-2 23:18:55 Fitness view View comments

A scientist once said, "The foundation of science is a healthy body."It is true that a healthy body provides favorable conditions for a good life and achievements in career.

Exercise is an active means of preventing disease.Whether a person is ill, besides the various physical, chemical, biological and other pathogenic factors of the external environment and the lack of some essential substances in the body, it is more important to be concerned with the function of each organ system of the human body, the human body's ability to adapt to the external environment and the ability to resist diseases and other internal causes.Some drugs can also increase resistance, but exercise is the most active means of strengthening resistance to the underlying causes of disease.

The movement can promote the movement function of each organ system of the whole body through the muscle activity, make the constitution strengthen, the immune function enhances, at the same time, the movement also can more accept the sunshine, the air to the health gift, improve the human body to the external environment's adaptation ability.The number of colds among physically active teenagers in school was only 18 percent of the number among inactive students.

Exercise gives the heart a positive exercise, so that the heart function is enhanced, the vascular elasticity is improved, it promotes the metabolic process of substances in the body, so as to increase the protective HDL, so as to play a positive preventive role in the occurrence of cardiovascular diseases.In a survey of more than 16,000 employees, the incidence of coronary heart disease was three times higher among those who did not exercise than among those who exercised regularly.The incidence of hypertension among athletes is only about 25% of that of the general population.

Exercise can also reduce the oxygen uptake capacity of the body, maintain good lung function, prevent the occurrence of respiratory diseases.Lack of exercise often leads to decreased elasticity of the alveoli, and aging is prone to emphysema and other diseases.Respiratory function is low, so that the human body's ability to resist disease decline.Exercise, on the other hand, allows the alveoli to fully open and remain elastic.People over 70 years old who keep exercising can keep their vital capacity at the high level of young people, and respiratory diseases are less likely to occur.

Exercise can improve the blood circulation of bone and muscle, and has a good effect on preventing some diseases of bone and joint and muscle.Someone once counted 100 patients with shoulder pain caused by tendonitis, among whom lack of exercise accounted for 75%.Exercise also has a good effect on the prevention of osteoporosis in the elderly, and is also a positive means to prevent muscle atrophy.

Exercise can also improve and enhance the function of the nervous system and the endocrine system, and provide good conditions for coordinating the activities of each organ system of the whole body to adapt to the changes of internal and external environment and resist various diseases.

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