How to understand "Yang in spring and summer, Yin in autumn and winter"

The alternation of four seasons is the result of the change of Yin and Yang of heaven and earth, and the physiological function of human body also shows the regular change of "internal seasonality". Therefore, adapting to the changes of the four seasons keeps the unity of the changes of yin and yang between the body and the outside world, which is also the theoretical basis put forward by the ancients for adapting to the four seasons, nourishing yang in spring and summer and nourishing yin in autumn and winter. Generally speaking, spring and summer are warm, the human body is full of yang, and yin and body fluid are often easily damaged, resulting in sweat leakage. In order to adapt to this climate change, people pay more attention to the maintenance of yin and body fluid, but often unconsciously ignore the maintenance of yang.

Motherland medicine believes that keeping in good health in summer focuses on "nourishing yang". The so-called "nourishing yang in spring and summer" requires people to abide by the law that spring dominates summer in nature and pay attention to maintaining yang, so as to achieve the purpose of strengthening the body and prolonging life. Wang Qishi, a famous health care scientist, clearly pointed out in "Xu Li Yuan Jian": "It is necessary to prevent heatstroke in summer, but also to prevent heatstroke and cool down, and to prevent dampness in long summer". The basic principles of summer health preservation are pointed out: heatstroke prevention in midsummer; Preventing dampness in long summer; At the same time, we should pay attention to protecting the human body's yang, so as to prevent excessive greed and coldness due to summer vacation, which will hurt the human body's yang, that is, "nourishing the yang in spring and summer" as pointed out in Huangdi Neijing, that is to say, even in hot summer, we should still pay attention to protecting the human body's yang.

Main factors of yang injury in summer

Summer-heat dampness hurts yang, and summer-heat hyperactivity hurts yin most easily, and yin and body fluid are often consumed with sweat leakage, resulting in yin failing to converge yang. As Bing Wang, an ancient doctor in China, said, "Without Yin, Yang Can can't survive, and with all Yin, Yang Can won't be very strong." This foreign minister is wet in summer, and dampness is yin evil, which is easy to hurt yang, especially spleen and stomach yang.

Careless injury to Yang in daily life

It is most vulnerable to wind, cold and dampness, because in summer, the heat is steaming outside, sweating like rain, and the pores are open. People often only care about the immediate comfort and avoid heat too much, such as spending the night in the cold in the open air, which leads to the evil of wind and cold taking advantage of it and damaging the yang. The book "Providing for the Aged and Longevity" points out: "If it is hot in summer, if you break the window under the eaves, you can't enjoy the cool, in case thieves catch the wind." "Photojournalism" also pointed out: "Don't lie naked under the stars and moons, making people sleepy and enjoying the cool wind."

Careless diet hurts yang.

The climate in summer summer is hot, and people prefer cold drinks, but they don't know that being too greedy can easily damage human yang and lead to diseases. Qiu Chuji, a health expert in the Yuan Dynasty, advocated a proper diet in summer: "Warm, don't be too full, often eat it ... be warned when it is greasy." In other words, the diet in the long summer should be a little hot, not too cold; Don't eat too much, but you can eat more.

Main methods of supplementing yang in summer

Prevent heatstroke and fever, and beware of air conditioning.

The outstanding feature of summer is heat, so we should focus on heatstroke prevention and antipyretic. Usually, people will use air-conditioning equipment such as air conditioners, but if they are not used properly, air-conditioning diseases will easily occur. The so-called air-conditioning disease refers to a disease caused by working and living in an air-conditioned environment for a long time. Mild facial neuralgia, lower limb pain, fatigue, headache, low back pain, easy to catch a cold and suffering from different degrees of gastrointestinal diseases; In severe cases, skin diseases and cardiovascular diseases will occur. The specific prevention methods are as follows: the temperature difference between indoor and outdoor should not be too large, and it is best not to exceed 5℃; Indoor temperature is not lower than 25℃; Air-conditioned rooms should not be closed for a long time, and should be ventilated frequently when conditions permit to make the air circulate; After falling asleep, it is best to turn off the air conditioner; When you feel cold indoors, you must stand up, move your limbs and body properly, and speed up blood circulation.

Adjust the spirit, calm down and naturally cool down.

Summer is hot and humid, which makes people fidgety and nervous. Motherland medicine attaches great importance to the influence of people's spirit on diseases, pointing out that "mind should be flat, mind should be cold and snowy" in midsummer, advocating "rest without rashness", and avoiding impatience and rashness, which is harmful to health. Therefore, after entering the summer, we should pay attention to recuperate our emotions, relax our spirits, be calm, control our impatience and anger, and be optimistic and happy, so that we can enter a "calm and naturally cool" situation.

Daily life is regular and conforms to yin and yang.

In summer, everything in nature grows vigorously, so we should adjust our daily life accordingly, such as getting up early in the morning, taking a walk and jogging in a quiet place outside after washing, breathing fresh air and stretching the human yang. Go to bed early and get up early, conform to nature and maintain vigorous function. It is advisable to get up at 6 o'clock from beginning of spring to long summer; 5 o'clock is suitable for long summer vacation; (It is advisable to go to beginning of winter at 6 o'clock in summer; It is appropriate for beginning of spring to start the winter solstice at 7 o'clock), but with the different regions, the differences of solar terms need to be specifically adjusted, and it is appropriate for Dongfang Bai and the sun not to rise (it is appropriate to look at the horizon later in winter).

Proper exercise in summer will never get tired of the heat.

Only by adapting to the changes of the four seasons and keeping the body consistent with the changes of yin and yang outside can human beings adapt to nature. So it is necessary to take part in proper exercise in summer. Exercise bones and muscles, regulate qi and blood, and maintain yang through various beneficial exercises. It is generally believed that the temperature around 2 1℃ is the most comfortable temperature for human body, at which time the physiological function is the best and it is most suitable for sports activities. When the temperature is too high (above 35℃), in order to prevent excessive sweating from causing heatstroke and dehydration, sports activities at this time must be cautious, especially for the elderly and children, which is not suitable for sports at this time. Those who have adapted to the thermal environment can exercise properly. However, in the process of exercise, we should not only avoid the scorching summer sun, but also be "insatiable" and get in touch with some sunshine properly. In summer, you sweat a lot and have a lot of fat, so it is advisable to take a bath in Qin Ying, and the water temperature is generally between 30℃ and 40℃. Clothes should be loose and comfortable, keep clean and dry, so as to facilitate the radiation of body temperature and avoid soaking in sweat.

Eat properly and protect the yang.

In summer, the days are long, the nights are short, and the weather is hot and humid. Pay attention to diet regulation, don't eat after extreme hunger, and don't eat too much. Also avoid extreme thirst and drink too much. Eat fruits and cold drinks carefully, so as not to hurt the spleen and stomach yang. In eating habits, it should be cool and healthy, not greasy and sticky, so as not to hurt yin and help heat. On the basis of harmony, spring and summer should be sour, bitter and salty. Sour taste converges to prevent excessive summer heat and dissipation of qi and yin, and bitter taste can purge fire and protect yin and eliminate excessive summer heat; Salty taste enters the kidneys from the roots. It is not advisable to overeat acridine, so as not to disperse and help heat. This is the general situation. As for the degree of coldness, the variety of food and the degree of five flavors, it is still necessary to carefully choose according to the spring and summer seasons, personal physique and food characteristics.

Raise yang in summer.

Old people who are vegetarian and have yang deficiency can often eat cock, jujube, walnut, crucian carp and other foods beneficial to warming yang, as well as medicated porridge with the effect of warming yang and dispelling cold, which can often get the effect of benefiting qi and strengthening the body. For the elderly who are weak due to yang deficiency, Yang Can drugs can be taken appropriately to tonify yang and relieve summer heat.