The sun and the moon alternate, cold and summer alternate, and the qi of the four seasons conforms to its Tao, and it starts again and again. Everything in the world, starting from Yin and Yang, grows in spring and grows in summer, and harvests in autumn and hides in winter. In spring and summer, the yang is strong and everything grows, reaching its peak; Autumn and winter are full of yin, and everything is restrained, hidden but not exposed. As Huangdi Neijing said: "The man who is yin and yang at four seasons is the root of all things, so saints raise yang in spring and summer and yin in autumn and winter to follow their roots, so they rise and fall with all things at the gate of growth ...? "。 The ancients used this method for health preservation, preventing problems before they happened. How do modern people preserve their health, get rid of diseases and prolong their lives through this method? This paper expounds its principle and concrete application method.

1.？ What is nourishing yang in spring and summer?

The sun shines in spring and summer, the spring shines and the summer shines. In spring, the sun comes into being and everything revives and grows. But the evil of wind and cold is still a problem in spring, so we should pay attention to keep warm and keep out the cold in spring. A folk proverb says that clothes should not be cut down too early in spring, which is the truth of nourishing human yang. In summer, the sun is extremely strong and everything grows sturdily. But in summer, heat is evil, heat consumes qi, and qi is also yang, so heat also hurts the yang of human body. In summer nights, people like to enjoy the cool, and are vulnerable to the evil of cold and dampness, thus hurting the yang. It's hot in summer, people like cold drinks, and eating too much is easy to hurt the sun. Therefore, in summer, we should not only enjoy the cool and escape the heat, but also avoid drinking cold drinks so as not to hurt the sun; When enjoying the cool in summer night, avoid wet dew and cover it properly to avoid wet and cold.

In spring and summer, the sun is strong. With the growth of the spirit of the sun, we can also raise the sun from the following aspects. First of all, don't drink too much cold food, especially for the elderly and children, and eat less cold things such as fruits and cold drinks to avoid hurting the spleen and stomach. In diet, you can eat some warm foods, such as angelica and ginger mutton soup, rooster pot, beef soup and so on. Secondly, life lies in exercise. In spring and summer, it is more appropriate to exercise bones and muscles through various beneficial exercises to achieve qi and blood and maintain yang. Generally speaking, you can choose appropriate exercise according to different age, gender and physical condition, so that your body will be tireless and your skin will sweat slightly. In addition, in nature, yang is active in spring and summer, and people with yang deficiency can use some warming and nourishing products, such as Jinkui Shenqi Pill and Wuzi Yanzong Pill.

2. What is nourishing yin in autumn and winter?

It is cloudy in autumn and winter, cloudy in autumn and hidden in winter. In autumn and winter, dryness and evil can damage yin, so taking nourishing yin or applying moisturizing skin care products in autumn and winter can also help prevent dryness and keep indoor air moist. It gets colder in autumn and colder in winter. People like to eat spicy food and drink to keep out the cold. Spicy products are easy to get angry, wine is easy to get hot and humid, and eating too much hurts yin. Therefore, it is necessary to avoid dryness and evil in autumn and winter, and avoid overeating to prevent yin injury.

With the increase of Yin Qi in autumn and winter, we should also pay attention to nourishing yin from all aspects. First of all, the diet is mainly nourishing yin and moistening dryness. Such as eating autumn pear cream to nourish yin and moisten lung, duck porridge to nourish yin and promote fluid production, etc. Secondly, outdoor activities should be adjusted in time to avoid large amount of activities, hurting body fluids and gas, and hurting vaginal fluid; Furthermore, people with yin deficiency constitution can also use some drugs for nourishing yin, such as Ophiopogon japonicus, Scrophularia, Radix Rehmanniae and Radix Pseudostellariae. You can also use some traditional Chinese medicines, such as Liuwei Dihuang Pill, Danggui Buxue Pill and Dabuyin Pill.