Climate change throughout the year is a normal law of nature and a basic condition for the growth and development of all living things. If we violate this law, we will suffer disaster or disease. The outstanding manifestations of climate change in four seasons are high temperature in spring, hot in summer, cool in autumn and cold in winter. Under the influence of this kind of climate change, organisms gradually come into being and form corresponding laws of spring, long summer, autumn harvest and winter storage, and people are no exception. This is because in the course of its evolution, in order to survive, human beings have gradually acquired a good human body structure and physiological flexibility to adapt to nature. Therefore, the so-called method of conforming to nature requires people to adjust themselves in their daily lives according to the different characteristics of the four seasons, as "Lingshu Ben Shen Pian" said: "The health of the wise will be suitable for the four seasons." Therefore, the purpose of emphasizing that the human body adapts to the natural changes of the four seasons is to strengthen the human body's ability to adapt to nature, make use of the favorable factors of nature and resist the unfavorable factors of natural changes, so as to ensure the health and longevity of the human body.

As the proverb goes, a year is in spring. Spring returns to the earth, the climate gets warmer, and vitality is booming. Clothes should be gradually reduced with the temperature, and work and rest should be adjusted to stay up late and get up early; Engage in outdoor activities, such as hiking. ) makes you physically and mentally happy and emotionally happy; Diet should not be too full, eat less spicy. Summer is hot, sunny, body heat fumigation, sweating like rain, and physical exertion is great. Because the days are long and the nights are short, and there is insufficient sleep, it should be supplemented by a nap, but it is not appropriate to lie in the wind and not be greedy for cold; Drink water often, and don't eat cold and unclean things; Frequent bathing makes the skin loose and clean, so that the heat in the body leaks out. In autumn, there is a saying that "an autumn rain is cool", plants gradually wither, creatures begin to sleep, and the temperature difference between morning and evening is wide. Middle-aged and elderly people should change clothes frequently, exercise regularly and eat warm food with the change of temperature; People who are weak can choose suitable tonics to enhance their disease resistance. When it is cold in winter, everything is hidden, and the human body should avoid the cold and keep warm. Go to bed early and get up late in daily life, and increase nutrition in diet; And should strengthen self-fitness exercise according to local conditions, so that blood flow is smooth and bones and muscles are strong.

Weather changes, whether sunny or cold, often have a certain impact on people's mood; The sudden change of climate will also affect the physiological function of human body, and the change of physiological function will affect people's mental state. Whenever the autumn is crisp and the weather is mild, people's mental state is often optimistic and comfortable; Whenever the weather is cold, rainy, dry and sultry, people's mood will become irritable or depressed.

When the temperature is 18~22℃ in spring and autumn, people not only feel comfortable and emotionally stable, but also have a particularly high efficiency in study and work. If the ambient temperature exceeds 34℃, it will not only make people sweat, feel hot and uncomfortable, but also make people fidget and prone to excessive harmful behaviors, such as overeating cold drinks, washing their bodies with cold water, and lying in the wind at night. But when the ambient temperature drops below 10℃, people's mood becomes dull and depressed; When it is lower than 4℃, it will seriously affect the brain thinking.

In Xia Dong in two seasons, although the natural temperature is hot and cold, which exceeds or is less than the normal limit of human body temperature, in order to adapt to the natural temperature, the human body has its own physiological adjustment ability to balance it. If you continue to be hot and cold, or you can't adapt immediately, in this case, it will not only change your mood, but even lead to illness. In addition to the changes of cold and hot temperatures, rainy, humid, foggy and windy weather will also affect people's thinking and attention, which should attract people's attention.