Health is the number one asset in life.

Health means that a person is in a good state physically, mentally and socially. Health includes two aspects: first, the main organs are free of disease, the body form is well developed, the body shape is uniform, the human body has good physiological function of the various systems, there is a strong physical activity and labor capacity, which is the most basic requirement for health; second, the resistance to disease is strong, able to adapt to changes in the environment, a variety of physiological stimuli and the role of disease-causing factors on the body. The traditional view of health is "no disease is health", the modern view of health is the overall health, the World Health Organization proposed that "health is not only the absence of physical disease, but also mental health, social adaptation and good morals. Therefore, modern people's health includes: physical health, mental health, spiritual health, social health, intellectual health, moral health, environmental health and so on. Health is a basic human right.

The meaning of modern health is not only the absence of physical illness as traditionally referred to, but according to the interpretation of the World Health Organization (WHO), health does not only refer to the absence of physical illness or weakness, but also refers to a person's physiological, psychological and social well-being, which is a more complete scientific concept of health in modern times.
The meaning of modern health is diversified and extensive, including physiological, psychological and social adaptability in three aspects, of which the social adaptability depends on the quality of physiological and psychological conditions in the final analysis. Mental health is the spiritual pillar of physical health, and physical health is the material foundation of mental health. Good emotional state can make physiological function in the best state, on the contrary, it will reduce or destroy a certain function and cause disease. Changes in physical condition may bring about corresponding psychological problems, physiological defects, diseases, especially chronic diseases, often cause people to produce worry, agitation, anxiety, depression and other bad emotions, resulting in a variety of abnormal psychological state. As the unity of body and mind, the physical and mental are closely dependent on each other.
The four cornerstones of health maintenance are: balanced diet, moderate exercise, abstinence from smoking and alcohol, and mental health.

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