China is a “tea” country, tea is China’s traditional “health” drinks, a long history. Black tea, green tea, oolong tea, white tea …… variety. Tea contains a large amount of ellagic acid, theophylline, caffeine and a small amount of aromatic oils, a variety of vitamins, chlorophyll and other components. A hot cup of tea can refresh your mind and body and relax you. However, not all people are suitable for tea, and tea varieties and time have a lot to say, today we will talk to you. If you have neurasthenia, hyperthyroidism, tuberculosis and other diseases, their own high basal metabolic rate, and tea contains more caffeine, after drinking will excite the nerves, increase the heart rate to raise blood pressure, causing high basal metabolism, which will make the above patients worse. This is equally important for hypertensive heart disease patients, drinking too much tea will make the blood pressure rise, and may even have arrhythmia, or trigger the occurrence of angina. Some patients with heart failure have to limit their fluid intake, and drinking tea may increase fluid intake and also increase the risk of worsening cardiac insufficiency in patients with heart failure. Tea is also risky for people with digestive disorders. If you have gastric and duodenal ulcers, the caffeine in tea can stimulate gastric juice secretion and the ulcer surface, aggravating gastric problems and ulcers. Strong tea, in particular, can be even more stimulating for people with digestive disorders. Tea chemicals need to be metabolized by the liver and kidneys, if patients with liver and kidney disease long-term large amounts of tea, but also increase the load on the liver and kidneys, and even cause damage. Tea contains a large amount of ellagic acid, ellagic acid and urinary stones increase has a direct relationship. In addition, the tannic acid in the tea in the stomach is very easy to combine with the low value of iron, and thus the formation of insoluble tannic acid iron, thus impeding the body’s iron absorption, if there is anemia and other conditions, it will make the anemia worse. So anemia patients should not drink tea. Tea also does not have the exact role of iron. Pregnant women generally do not drink tea, including milk tea are counted. If you drink too much tea, on the one hand, affect the absorption of iron, will cause anemia. In addition, the caffeine in tea makes newborns lose weight due to insufficient blood supply from the mother. Lactating women due to the caffeine in tea will stimulate fetal movement increase, and even endanger the growth and development of the fetus. Lactating women who drink large amounts of tea can enter the baby’s body through breast milk, causing the baby to have spasms, irritability, and unexplained crying. Never use tea to take medicine. Tea contains theophylline, which can excite the human cerebral cortex. So those drugs that have a depressant effect on the central nervous system, such as sleeping pills, sedatives and cough suppressants, etc. with tea, affecting the original efficacy of the drug. Tea also contains a lot of tannic acid, can make some drugs produce precipitation, or other chemical effects, affecting the efficacy of the drug. For example, the treatment of iron deficiency anemia of iron citrate, ferrous sulfate, alkaloid-containing drugs, such as atropine, rifampicin, ephedrine, codeine, compound gastroparesis, as well as traditional Chinese medicine artichoke, Yuanhu, Huanglian, artichoke and so on. Drugs containing sodium bisulfate, such as stomach tablets, rhubarb soda tablets, pediatric elimination tablets. Strong tea should not be used to relieve alcohol after drinking. Ethanol in alcohol enters the bloodstream through the gastrointestinal tract and is converted into acetaldehyde in the liver, which is then converted into acetic acid, which is then decomposed into carbon dioxide and water. Drinking tea after drinking, the theophylline in tea can quickly play a diuretic effect on the kidneys, thus promoting the decomposition of acetaldehyde has not yet entered the kidneys prematurely. Acetaldehyde has a greater stimulating effect on the kidneys, will affect the kidney function, so, often drink strong tea after drinking people prone to kidney disease, and there is no exact antidote to alcohol. We suggest that people with the above mentioned diseases avoid drinking tea as much as possible. If you have been in the habit of drinking tea, on the basis of active treatment of the disease, according to the physical condition of the discretion to resume drinking tea, and should pay attention to the type of tea, concentration and drinking time.