Why do you want to put a glass of water next to you when burning charcoal to keep warm?

Absorb carbon dioxide produced by combustion with water to prevent carbon dioxide poisoning.

In order to survive in the natural environment of ice and snow, the ancient nationalities in Northeast China "often live in caves, and the deep ones are more expensive." Go down to the cave with nine ladders, make a fire in it, spread branches, firewood or leather sheets around it, and coat yourself with "Tapi cream, which is a little thick to keep out the cold".

There are also "building cities and living in caves" or "living in caves in the mountains in winter". Later, due to the improvement of sealing conditions, that is, covering animal skins in wooden houses and using them externally on mounds or mud paste, people walked from underground to the ground in winter. This can also be seen from the horse rack of Hezhe nationality.

According to Zhang Guoqing's textual research in his article "The Origin of the Kang Custom of the Northern People", "The Book of the New Tang Dynasty: A Biography of Korea" contains: "(The man) is a long kang in winter, and he burns a warm fire below". Many western buildings used to rely on fireplaces for heating in winter. That is to say, in the living room of the room in winter, there is a big fireplace burning wood, which makes the wall very hot and becomes a fire wall. Through this firewall, the whole house will warm up in winter.

Gold is lung, sand is earth, spleen is water, water is kidney, lung is close to back, and kidney is also on back. The five internal organs are hot and the whole body is hot. Just try it. Rub the palm of one hand on the back of the other hand, and your back will feel hot. The palm of your hand is yin, the back of your hand is yang, and the same sex repels and the opposite sex attracts.

"Kidney is the foundation of congenital", "Kidney is full of qi, and all diseases are eliminated". Spleen is the foundation of nurture. The lung governs the qi of the whole body and the qi of breathing. When the three organs are well regulated, the immune function will be improved. Teach you a simple method of nourishing kidney: stand with your hands on the back of Mingmen point, palms facing each other, and stand on tiptoe for five minutes.