Some old people like to get up early and drink a cup of strong tea, which is actually bad for their health. Because drinking strong tea on an empty stomach in the morning will not only cause gastrointestinal discomfort, loss of appetite, but also damage the normal function of the nervous system. When the elderly drink tea in the morning, they can pour the first sip of tea and drink two sips of tea. It is better to add a little sugar and a proper amount of white chrysanthemum to tea.
Tea is a natural healthy drink. Studies have shown that drinking tea can quench thirst, help digestion, resolve phlegm, improve eyesight, induce diuresis, relieve boredom, relieve boredom, prevent cancer, refresh oneself and prolong life.
1, cancer prevention: Studies have confirmed that tea polyphenols can block the formation of carcinogenic nitroso compounds in human body. Green tea has the strongest blocking effect, and the blocking rate is above 90%. Followed by scented tea, oolong tea and black tea. It was found that soaking tea with 1g twice and drinking it with 150ml of water each time could completely block the synthesis of nitroso compounds in human body.
2. Radiation protection: Studies show that polyphenols, fatty acids, vitamins C and A contained in tea have radiation protection functions. Drinking tea can effectively prevent radiation-induced leukopenia. For cancer patients receiving radiotherapy, taking soluble tea can eliminate or alleviate the adverse reactions such as nausea, vomiting, loss of appetite and diarrhea after radiotherapy.
3. Prevention of dental caries: Studies have shown that drinking tea, gargling with tea soup and brushing teeth can prevent dental caries. People who drink oolong tea regularly have a decrease of about 60% in the incidence of dental caries.
4. Prevention and treatment of cardiovascular diseases. Studies have confirmed that tea tannin can inhibit the proliferation of arterial smooth muscle cells, and obviously has the functions of anticoagulation, promoting fibrinolysis, anti-plaque formation, reducing capillary fragility and blood viscosity. Therefore, it has the functions of preventing hypertension and atherosclerosis, improving blood circulation and preventing thrombosis. Generally, you can make 5 grams of green tea a day.
5. Prevention and treatment of intestinal diseases: Organic acids such as fatty acids and aromatic acids contained in tea have bactericidal effects and can be used to treat intestinal diseases such as bacillary dysentery, chronic ulcerative colitis and ileitis. 9 grams of tea, decocted.
6. Promoting fluid production to quench thirst and relieve summer heat: Because polyphenols, sugars, pectin and amino acids in tea have chemical changes with saliva in the mouth, it can make the mouth moist and produce a cool feeling. Caffeine can regulate body temperature, so drinking tea can quench thirst and relieve summer heat. Even in hot summer, drinking hot tea can quench thirst better than other drinks, and the cooling time lasts longer.
7. Reduce fat and lose weight: Studies have confirmed that caffeine, inositol, folic acid and aromatic substances in tea can enhance gastric juice secretion and regulate fat metabolism, especially oolong tea has a good decomposition effect on protein and fat, so drinking tea can reduce weight. Generally, 5 grams of tea leaves are soaked in water every day, and it will take effect after more than one month.
8. Rinse your mouth with tea after meals: Studies show that tea is rich in alkaline substances, and its functions of decontamination, deodorization and greasy removal are far stronger than ordinary water. After three meals a day, especially after you have had a full meal with fishy smell and mellow wine, gargling with tea can clean your mouth and get rid of fishy smell and boredom. Tea can also kill some bacteria in the mouth and prevent oral inflammation. Tea can also deodorize, especially wine, cigarettes and garlic.
9. Refreshing the brain, benefiting thinking and relieving fatigue: Studies have confirmed that caffeine in tea can excite the central nervous system, make the mind clear and quick-thinking, accelerate blood circulation, activate bones and muscles, promote metabolism and relieve fatigue.
10, Longevity and Anti-aging: Studies show that tannins contained in green tea can control lipid peroxides produced in human body and prevent aging. Tea tannin can control 74% fatty acid peroxidation, which greatly exceeds the effect of vitamin E, so drinking tea often can prolong life.
What kind of tea has the best anticancer effect?
In recent years, scientists in China discovered for the first time that China tea can prevent nitroso compounds from causing cancer to human beings. Nitroso compounds are relatively certain human carcinogens. Researchers believe that green tea, pressed tea, scented tea, oolong tea and black tea can block the formation of nitroso compounds. Animal experiments show that Fujian tea, Tieguanyin tea, Hainan green tea, black broken tea and Hangzhou fried green tea can inhibit the occurrence of esophageal tumors in rats. Tea can not only prevent the formation of nitroso compounds, but also inhibit the carcinogenic effect of nitroso compounds. Scientists also found that among all kinds of teas, green tea has the best anticancer effect.
What effect does tea have on human health?
Judging from the curative effect on diseases, drinking green tea is better than drinking black tea. Scented tea is generally made of green tea, so it has the same effect as green tea. But the elderly, especially those with habitual constipation, drinking green tea often aggravates constipation. The Air Force Medical College found that black tea has the most significant life-prolonging effect in the study of screening anti-aging drugs in life-span test.
Generally speaking, teenagers and children should gargle with tea or drink light tea; Adolescent development is vigorous, so it is advisable to drink green tea. Black tea is warm and should not be too strong when drinking. Girls are often agitated before and after menstruation and menopause. Drinking scented tea is helpful for soothing the liver and relieving depression, regulating qi and regulating menstruation. Prostatitis or prostatic hypertrophy, appropriate use of scented tea; Women should drink black tea after delivery, and it is better to have brown sugar at home; People with stomach problems should use honey tea; People with liver disease should use scented tea; Black tea is the first choice for manual workers; For writers, green tea is more suitable; If you want to lose weight and fat, oolong tea and Pu 'er tea are the best. Japanese women call oolong tea "a panacea for beauty and health". French women, especially young girls, attach great importance to physical beauty. They called Yunnan Pu 'er tea "scraping camellia oleifera" and "waste tea" and said, "Do you want it to be beautiful? Then you have to drink Pu 'er tea. In addition, Pu 'er tea does not harm the gastrointestinal tract, while Oolong tea has diuretic effect and less caffeine content, which is suitable for men, women and children.