The weather is getting hotter, and some friends who "like" getting angry have started their painful days again ... oral pain, dry throat, red eyes, nasal fever and nosebleeds ... At this time, many people will think of Kuding tea, and drinking Kuding tea on fire has become a habit of many people. In addition, there are many people who prefer the taste of Kuding tea and drink it like boiling water. A Japanese study found that drinking two or three cups of green tea a day can reduce people's risk of developing Alzheimer's disease by about half. In this regard, Dr. Liu Yuning, Chief Physician of Chinese Medicine Department of the First Hospital of Peking University, said that from the perspective of Chinese medicine, Kudingcha has the functions of dispelling wind and clearing heat, clearing the head and removing polydipsia, and has obvious medicinal effects in treating headache, toothache, red eyes and fever, polydipsia and dysentery. Modern pharmacological research has also proved that Kuding tea not only contains a variety of essential amino acids, vitamins and trace elements such as zinc, manganese and rubidium, but also has the functions of reducing blood fat, increasing coronary blood flow, improving myocardial blood supply and resisting atherosclerosis, and has a good preventive and therapeutic effect on symptoms such as dizziness, headache, chest tightness, fatigue and insomnia of patients with cardiovascular and cerebrovascular diseases. In addition, Kuding tea is green and uniform in appearance, bright and green in soup color, slightly bitter and smooth in taste, sweet and long, and cool to quench thirst after drinking. Therefore, it is favored by people, especially middle-aged and elderly people. However, Kuding tea is not suitable for everyone. Some people should be careful when drinking Kuding tea. Winter and spring are the seasons with high incidence of colds. For people suffering from cold, such as aversion to cold, no sweat, runny nose, etc., you can eat some warm food, such as ginger and Schizonepeta, to drive away the cold in the body. Drinking Kuding tea at this time will hinder the divergence of cold, which is not conducive to the cure of cold. People with deficiency and cold constitution often feel that their hands and feet are not warm, and they are afraid of cold and cold. People with this constitution can usually consider eating mutton and dog meat isothermal food to warm the yang and dispel the cold. If you often drink cool Kuding tea, it will damage the yang in the body, which is not conducive to the improvement of deficiency-cold symptoms, and even serious symptoms such as abdominal pain and diarrhea may occur. Most patients with chronic gastroenteritis have different degrees of spleen and stomach deficiency and cold. Once the abdomen catches cold or eats cold food, it is prone to abdominal pain, diarrhea and other discomfort, and Kudingcha will aggravate these symptoms. In addition, the spleen and stomach function of the elderly is relatively weakened, and the spleen and stomach function of infants is not perfect, so it is not appropriate to drink Kuding tea, otherwise it will easily cause side effects such as indigestion, cold pain in the upper abdomen, and eating less loose stool. Then there are menstrual women and new mothers, which are not suitable for drinking. Women are in a state of blood loss during menstrual period, and their resistance decreases. Drinking cold kudingcha at this time can easily lead to stagnation of qi and blood, poor menstrual discharge, dysmenorrhea and even irregular menstruation. Women who often have dysmenorrhea, even if they are not menstruating, had better drink less kudingcha. The woman who just gave birth to the baby is weak, so she should eat more warm food. Cold Kuding tea is not only bad for the recovery of postpartum uterus, but also hurts the spleen and stomach, which easily leads to chills and abdominal pain.