The characteristics of diseases caused by hair are different. In Qing Dynasty, the diet described by Wang Shixiong in "Diet Spectrum of Living with Interest" tends to focus on the types of hair products involved, and makes it clear that we must avoid eating and avoiding harm when differentiating and treating diseases and maintaining health. According to the traditional understanding, hair products are classified into seven categories. \x0d\\x0d\ 1, hot hair: many of them are pungent and dry, which can help hot fire, injure body fluid and rob fluid. Such as tobacco, wine, onion, ginger, pepper, garlic, leek, mustard, mutton, dog meat and stewed food, fried and fried. Excessive body heat, excessive fire due to yin deficiency, and diseases caused by various heat are not edible. \x0d\\x0d\2. Wind-moving substances: many of them have the properties of rising hair, dispersing qi and being hot, which can make people's yang qi rise and disperse, and the internal wind is strong and rebellious, and evil spirits flee. Such as seafood, shrimp, crab, shellfish, pork head, chicken, goose, milk, eggs, mushrooms, fungus, eggplant and so on. Urticaria, erysipelas, eczema, furuncle, furuncle, stroke, dizziness, convulsion, arthralgia syndrome, etc. are not edible. \x0d\\x0d\3. Moisturizing hair products: many of them are sticky, fat, sweet and greasy, and can resist spleen, help dampness and love evil. Such as caramel, jujube, pasta, fat and sweet and greasy things. Wet fever, jaundice, stranguria, dysentery, leukorrhagia, malaria and other taboos. \x0d\\x0d\4. Accumulation of cold hair: Many of them are cold and moist, which can hurt yang and produce cold, and affect the transportation and transformation of viscera. Such as winter melon, green beans, cold winter vegetables, amaranth, lettuce, persimmon and so on. The vegetarian body is yang deficiency, yin cold is abundant, diarrhea, cold pain, yang deficiency edema and so on are not suitable for eating. \x0d\\x0d\5. Blood-activating and hair-activating substances: many of them have the properties of promoting blood circulation and dispersing blood, which can activate blood to injure collaterals and force blood to overflow. Such as arrowhead, pepper, mutton, dog meat, spinach, shochu and so on. All kinds of bleeding diseases, bleeding during collapse, hemorrhoids, menorrhagia, vomiting blood, hemoptysis, epistaxis, subcutaneous hemorrhage, hematuria and other diseases are not allowed to eat. \x0d\6. Qi-moving substances: most of them have the properties of stagnation, stagnation and hardness, which can block Qi-moving and hinder the transport function of viscera. Such as black soybeans, Euryale ferox, lotus seeds, taro, potatoes, beans and some fruits and vegetables. It is not suitable for patients with excess syndrome such as indigestion, pain and mass. \x0d\7. Animal diseases: Most of them are highly irritating, which can induce chronic diseases and sudden symptoms. They are often influenced by certain external factors, such as fish, crabs, shellfish, some livestock meat, eggs, milk, mushrooms, Chinese toon buds, fungus, amaranth, etc. Those who have suffered from allergic diseases should pay attention to avoid eating. \x0d\ Some of the hair products listed above also have multiple hair-causing characteristics.