What are the basic requirements of six solar terms in summer for health preservation?

In the six solar terms of summer, everything in nature grows vigorously and begins to bear fruit. It can be said that the six solar terms in summer are the highest peak of the growth and change of all things. The climatic characteristics of the six solar terms in summer are heat (fire) and humidity. The so-called heat means that the temperature rises and the weather is hot. The drastic changes in the weather in the six solar terms in summer, such as high temperature and dryness, make people sweat too much, leading to disorders such as water and salt metabolism. Dry and hot wind can make people migraine, dizziness, irritability and depression, and many diseases will be aggravated at this time. It is found that ulcer perforation, embolism, thrombosis, postoperative bleeding, headache, etc. are all related to the hot and dry wind in summer, which will reduce people's reaction, produce various adverse consequences, and correspondingly increase natural mortality.

In addition to being hot, the climate of the six solar terms in summer is also characterized by being "wet". Humidity refers to the high humidity of the external environment. Relative humidity directly affects the heat dissipation of human body, which is closely related to the human body's feeling of temperature. The heat dissipation of human body surface depends on the saturation of water vapor that can be contained in the air. The higher the saturation, that is, the greater the relative humidity, the more difficult it is to dissipate heat. When the temperature is greater than 20℃, the relative humidity changes, and the human body produces different warm feelings, which in turn produces different physiological effects. When the temperature is lower than 20℃, the relative humidity changes, but the warmth of human body does not change. Too humid climate often leads to relapse or aggravation of old diseases. It is found that "high humidity" can cause the attack of myocardial infarction, "low air pressure with high temperature" can lead to the recurrence of polyarthritis, and "hot and humid" weather can also aggravate the attack of gastric ulcer Therefore, the suitable indoor temperature in summer is 2 1℃ ~ 30℃, and the suitable humidity should be 30% ~ 70%. If the humidity is too high, reaching more than 80%, it will make people feel stuffy, so open the window for ventilation. If the humidity is too low, mopping the floor with a wet cloth can increase the indoor humidity and make people refreshed.

Generally speaking, the air in the six solar terms in summer tends to be warm and humid. As far as humidity is concerned, the relative humidity of each layer of the atmosphere in the north and south of China is small in winter and large in summer. Early summer, Jianghuai rainy season, wet weather, high humidity. The climate characteristics of midsummer and long summer are high temperature, low pressure and high humidity, which are called "two highs and one low". At this time, we should pay more attention to the harm of damp heat to human body.