1, the human body depends on the material conditions provided by the qi of heaven and earth to survive, and at the same time, it has to adapt to the changing laws of yin and yang in the four seasons to develop and grow.

2. The physiological activities of the five internal organs of the human body must adapt to the changes of Yin and Yang in the four seasons, so as to maintain a harmonious balance with the external environment. This is basically consistent with the modern view that the conditions of life are the result of the interaction between matter and energy between heaven and earth.

Humans need to eat. Breathing air exchanges substances with nature, thus maintaining normal metabolic activities.

Extended data:

Five principles of health preservation in summer:

1, combining work and rest

Sleep late and get up early. In summer, the sunshine time is prolonged, the days are longer and the nights are shorter. At this time, it is necessary to adapt to the changes of yang excess and yin deficiency in nature, and also to "sleep late" and "get up early". It is recommended to go to bed before 10 at night and get up around 6 am.

Step 2 prescribe diet

Increase acidity and reduce pungency. In summer, the liver qi of human viscera is getting weaker and the heart qi is getting stronger. You can eat some sour food in your diet, such as tomatoes, lemons, strawberries, grapes, pineapples and mangoes. To tonify the kidney, help the liver and regulate the stomach. Their sour taste can astringe sweat and dispel dampness, promote fluid production and quench thirst, and strengthen stomach and digestion.

3. Emotion

Meditate and nourish your spirit. In summer, the elderly are easily agitated, and in the long summer, they should "nourish their hearts" for health preservation.

4. Health care

Strengthening spleen and eliminating dampness. Summer is hot and humid, and the elderly are prone to spleen deficiency. It is suggested to eat red bean sparerib soup, red bean barley porridge and yam lotus seed soup once or twice a week, which can improve mental fatigue, loss of appetite, loose stool and other symptoms caused by spleen deficiency.

5. Disease prevention

Winter disease is cured in summer. In dog days, the sun lasts for a long time, and the yang in nature is the most vigorous. At this time, acupoint application of traditional Chinese medicine can enhance the body's resistance and prevent and treat "winter disease", which can achieve remarkable curative effect.

Baidu encyclopedia-four seasons health

People's Health Network-Five Golden Rules of Summer Health? All seasons are suitable for cold and summer.