Nowadays, winter tourism is becoming a fashion. However, if we don't pay attention to the change of weather, especially the influence of cold climate on human body, we may be attacked by some diseases. Among the tourists, some are from the south and the north, some have more outdoor activities, and some are the elderly and infirm, who especially need cold and antifreeze. \x0d\\x0d\ When traveling outdoors in winter, the skin of exposed or peripheral parts (such as fingers, toes, cheeks, etc.) of the human body is stimulated by cold and humidity for a long time, and erythema may appear on the skin, which may lead to abnormal sensation, and in severe cases, it may develop into blisters and ulcers. If you stay in a cold environment for too long, it will not only cause skin damage, but also cause systemic diseases. In a cold environment, the incidence of heart disease, stroke, flu, chilblain, arthritis and other diseases will increase significantly. In winter tourism, the weather with low temperature and humidity, high pressure and high wind speed is very common. When the temperature drops from zero to below zero, the number of people with colds will increase sharply in a short time, including many young people. In a cold and dry climate, chronic bronchitis may recur. \ x0d \ x0d \ In order to prevent frostbite, warm clothes are very important. The outermost clothes should be windproof, and you can choose woolen cloth, fur or leather coat; A relatively stagnant air layer can be formed in the down jacket, which has good warmth retention and is the first choice for winter tourism. Underwear should be soft, hygroscopic and breathable, which is beneficial to moisturizing and drying. Try to reduce the exposed parts of the skin, and exercise or massage frequently for the parts that are prone to frostbite. \x0d\\x0d\ If you want to travel in winter without being hurt by the cold climate, it is essential to enhance your cold-proof ability. Adjusting diet and increasing metabolism is an effective way to improve the body's heat production capacity. In fact, in a cold environment, in order to maintain body temperature, the human body must increase its metabolism, and traveling requires a lot of physical strength. Only by increasing the intake of nutrients can we meet the needs of the human body. In winter tourists' diet, the intake of protein, carbohydrate and fat, minerals and vitamins are higher than usual, so we can't overemphasize the restriction of fat and carbohydrate intake as usual. Lean meat, eggs, fresh fish, bean products and animal liver are good for supplementing human body heat, so you can eat more appropriately. In addition, we should correct the misconception of drinking to keep warm. Alcohol and water cannot produce heat. On the contrary, alcohol can stimulate blood vessels on the body surface, increase blood circulation on the body surface, and make people feel "hot". In fact, the human body is losing heat.