Because tea can prevent the increase of sterols in human body and prevent myocardial infarction, you should drink some tea often. There are many benefits of drinking tea, which can be summarized as 14: (1) Tea can refresh people and enhance their thinking and memory abilities. (2) Tea can eliminate fatigue, promote metabolism, and maintain the normal functions of the heart, blood vessels, gastrointestinal tract, etc. (3) Drinking tea is of great benefit to the prevention of dental caries. According to a survey in Britain, children who regularly drink tea can reduce dental caries by 60%. (4) Tea contains many trace elements beneficial to human body. (5) Tea can inhibit malignant tumor, and drinking tea can obviously inhibit the growth of cancer cells. (6) Drinking tea can inhibit cell aging and prolong life. The anti-aging effect of tea is more than 18 times that of vitamin e. (7) Drinking tea can delay and prevent the formation of lipid plaque in vascular intima, and prevent arteriosclerosis, hypertension and cerebral thrombosis. (8) Drinking tea can excite the central nervous system and enhance sports ability. (9) Tea drinking has a good weight loss and beauty effect, especially oolong tea. (10) Drinking tea can prevent senile cataract. (1 1) Tannic acid contained in tea can kill many kinds of bacteria, so it can prevent and treat stomatitis, pharyngolaryngitis, enteritis and dysentery that are easy to occur in summer. (12) Drinking tea can protect people's hematopoietic function. Tea contains anti-radiation substances. Drinking tea while watching TV can reduce the harm of TV radiation and protect your eyesight. (13) Drinking tea can maintain the normal acid-base balance of blood. Tea contains caffeine and theophylline, which can neutralize acidic metabolites in blood in time. (14) heatstroke prevention and cooling. After drinking hot tea for 9 minutes, the skin temperature drops 1-2 degrees Celsius, which makes people feel cool and dry, while the skin temperature drops slightly after drinking cold drinks. Reasonable drinking tea is beneficial to the human body, but it is harmful to the human body if it is unreasonable. Drinking tea depends on physical fitness. Chinese medicine believes that people's physical fitness is divided into dry heat and deficiency cold. Those with deficiency cold constitution should drink warm tea. It is best to drink black tea in the evening. Because green tea belongs to non-fermented tea, the content of tea polyphenols is high, adding some milk when drinking black tea can play a certain role in warming the stomach. However, usually emotional or sensitive, serious will also cause palpitations, headaches and other "tea drunk" phenomenon. Eight misunderstandings about drinking tea 1. I like to drink new tea. Because of the short storage time of new tea, it contains more unoxidized polyphenols, which is easy to induce stomach problems. Therefore, new tea should be drunk less, and new tea stored for less than half a month should be avoided. Second, drink the first tea. Because tea is polluted by harmful substances such as pesticides during cultivation and processing, there is always a certain residue on the surface of tea. Therefore, the first tea should be discarded because it has a washing effect. Third, drinking tea on an empty stomach can dilute gastric juice, reduce digestive function, and the absorption rate of water is high, resulting in a large amount of bad ingredients in tea entering the blood, causing dizziness, palpitation, weakness of hands and feet and other symptoms. Fourth, drinking tea after meals contains a lot of tannic acid, which can react with iron in food. The correct way is to drink tea one hour after meals. Fifth, drinking tea with fever contains theophylline, which has the effect of raising body temperature. Drinking tea with fever is tantamount to "adding fuel to the fire". 6. Caffeine in tea leaves of patients with ulcers can promote gastric acid secretion, increase gastric acid concentration, and induce ulcers and even perforation. Seven, drinking tea during menstruation Drinking tea during menstruation, especially drinking strong tea, can induce or aggravate menstrual syndrome. Those who drink more than 4 cups of tea a day will increase by 3 times. Eight, the constant seasons make the climate different, and the types of tea should be adjusted accordingly. It is advisable to drink scented tea in spring, which is rich in protein and has certain nourishing function. Correct brewing method of green tea 1. When brewing green tea, the water temperature should be controlled at about 80℃ ~ 90℃. The serving size is 2 grams of green tea powder with 450cc of boiled water. 2. Don't drink the first brew of tea, just shake it after pouring hot water. 3. The brewed tea should be drunk within 30 minutes to 60 minutes, otherwise the nutrients in the tea will become unstable. 4. Green tea powder should not be soaked too thick, otherwise it will affect the secretion of gastric juice, and it is best not to drink it on an empty stomach. It is necessary to wash the tea dirt in time because it contains many heavy metals such as cadmium, lead, iron, arsenic and mercury. Therefore, it is necessary to wash the tea dirt on the inner wall of tea set in time.