Tea was first used as medicine, and then gradually developed into a drink. After fully understanding the medicinal efficacy of tea, it developed into health tea on the basis of pure tea. Health tea, also known as medicinal tea, refers to a health drink made of tea as the main raw material, supplemented by other Chinese herbal medicines, focusing on health care. Broadly speaking, it also includes health-care teas such as health-care prescriptions and prescriptions accumulated by doctors in past dynasties, as well as tea substitutes recognized by the people for prevention, health care and treatment, mainly for internal diseases.
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Health care: Black tea can help digestion, stimulate appetite, induce diuresis, eliminate edema and enhance myocardial function.
Disease prevention: black tea has strong antibacterial ability. Gargling with black tea can prevent colds caused by viral diseases, prevent tooth decay and food poisoning, and reduce blood sugar and hypertension.
Studies have shown that black tea is as effective as green tea and is more beneficial to the heart.
When everything recovers in spring, it is advisable to drink scented tea to drive away cold evil and promote the rise of Yang Qi.
Summer is hot and humid, and the human body consumes a lot. It is suitable for drinking green tea and has the effect of relieving summer heat.
Dry in autumn, it is advisable to drink semi-fermented tea, such as oolong tea;
It is very cold in winter, and it is often frozen by snow. Drinking black tea often is good for your health.
In order of efficacy: green tea-oolong tea-black tea-scented tea.
What are the benefits of drinking green tea? First of all, we must understand the ingredients of green tea. It has been proved by modern scientific research that green tea contains more than 450 kinds of organic compounds and 15 kinds of inorganic minerals, most of which have the effects of health care and disease prevention.
1, reducing fat and weight, preventing cardiovascular and cerebrovascular diseases. Drinking tea is closely related to losing weight. As early as more than 2,000 years ago, Shennong Materia Medica mentioned the slimming effect of tea: "Long-term service, peace of mind, benefiting qi ..... intellectual man fit and not old". Modern scientific research and clinical experiments have proved that drinking tea can reduce blood lipid and cholesterol and make the body lighter. This is because the comprehensive coordination of phenolic derivatives, aromatic substances, amino acids and vitamins in tea, especially the comprehensive function of tea polyphenols, theanine and vitamin C, can promote fat oxidation, help digestion and reduce fat and weight. In addition, tea polyphenols can dissolve fat, while vitamin C can promote cholesterol excretion. Green tea itself contains tea gan ning, which can improve the toughness of blood vessels and make them not easy to rupture. A study published in the Journal of Circulation of the American Heart Association in May 2002 shows that drinking tea regularly can reduce the risk of dying of heart disease. Researchers from Harvard Medical School in the United States conducted a follow-up survey on 1900 patients with heart disease, mainly the elderly over 60 years old. The survey found that those who drink more than 65,438+04 cups of tea per week have a lower risk of death within about three and a half years after a heart attack than those who don't drink tea. The study also shows that even if patients drink less than 14 cups of tea per week, it may reduce the death rate of heart disease by 28%.
2. Anti-cancer. Green tea contains tea polyphenols and caffeine, which have comprehensive effects, not only refreshing, but also improving human immunity and anti-cancer. In recent years, the American Chemical Society has always found that tea has an inhibitory effect not only on digestive system cancer, but also on skin, lung and liver cancer. It has been confirmed by scientific research that the organic anticancer substances in tea mainly include tea polyphenols, theophylline, vitamin C and vitamin E; The inorganic anticancer elements in tea mainly include selenium, molybdenum, manganese and germanium. Scientists in China and Japan believe that catechins in tea polyphenols have the best anticancer effect.
3. Anti-poison sterilization. The use of tea as a good antidote can be traced back to the ancient Shennong era (about 2737 BC). The saying that "Shennong tasted a hundred herbs and encountered 72 poisons every day, and solved them with tea" is recorded in Records of the Historian Huang San, Huai Nan Zi Xiu Wu Xun, Herbal Yi Yan and other books. Cha Sheng Lu Yu pointed out in the Book of Tea, the world's first authoritative work on tea science, more than 1200 years ago (AD 780), "Tea is the most suitable drink because it is cold ... If you feel hot, thirsty, stuffy, headache, tired eyes, tired limbs and uncomfortable joints, drink it four times. The above symptoms listed by Lu Yu are very close to typical pneumonia or suspected cases. Chen Zangqi, a medical scientist in the Tang Dynasty, wrote in Materia Medica: "Quench thirst and eliminate epidemic diseases. Expensive tea also. Liu Ye, a famous eunuch, listed "eliminating furuncle with tea" as one of the ten virtues of tea. Since the Tang Dynasty, there has been a new narrative in the study of tea by doctors in past dynasties, which is similar to detoxification and sterilization with tea. However, due to the underdeveloped science at that time, infectious and epidemic diseases were collectively called "plague" or "furuncle". Although bacteria and viruses are not specified, it has been proved that drinking tea is helpful for detoxification and sterilization. The research on the health care function of tea has been deepened in modern medical circles. In 2003, American scientists reported in the Journal of the American Academy of Sciences that "the chemical substance named' theanine' in tea can enhance the anti-infection ability of human body by five times".
4. Long life. The anti-aging effect of green tea on human body is mainly reflected in the coordination of several effective chemical components and various vitamins, especially tea polyphenols, caffeine, vitamin C, aromatic substances, lipopolysaccharide and so on. , can enhance human myocardial activity and vascular elasticity, inhibit arteriosclerosis, reduce the incidence of hypertension and coronary heart disease, enhance immunity, thus anti-aging and longevity. Medical research shows that tea polyphenols can not only reduce the contents of cholesterol and triglycerides in blood, but also enhance the toughness and elasticity of microvessels and reduce blood lipids, which is extremely useful for preventing and treating common diseases of middle-aged and elderly people such as hypertension and cardiovascular diseases. Tea contains selenium, and it is organic selenium, which is more easily absorbed by people than selenium in grain and oil. Dr Richard Paixiwat of the United States believes that adding selenium to food, combined with vitamin C and vitamin E, can prolong people's life, and tea is rich in these strange elements that are beneficial to life.
Drink green tea in autumn
Dry weather in autumn often makes people thirsty. You should drink green tea such as oolong tea and Tieguanyin tea. Green tea is mild in nature, between black tea and green tea, neither too hot nor too cold, suitable for autumn climate. Regular drinking can moisturize the skin and benefit the lungs, promote fluid production and moisten the throat, effectively remove residual heat in the body and restore body fluids, which is of great benefit to autumn health care. Green tea soup is golden in color, fat and even in appearance, tightly curled, green in color, rich in substances and refreshing and sweet in taste.
The quality characteristics of Tieguanyin are: refreshing and prolonging life. After seven times of brewing, Tieguanyin is fragrant, with both the fresh fragrance of green tea and the mellow fragrance of black tea. If you can appreciate Tieguanyin's unique "Guanyin rhyme", you will stop;
The quality characteristics of Pu 'er tea are: mild and peaceful, suitable for all ages in Xian Yi, with the effect of beautifying and slimming. Pu 'er tea tastes sweet and mellow. You must try it.
Jasmine tea is made of green tea and jasmine, which has the fragrance of flowers and the taste of tea, and has the effect of beauty and anti-cancer.
Longjing tea is one of the top ten famous teas in China, which is famous for its four unique qualities: green color, strong fragrance, mellow taste and beautiful shape.
"Biluochun" is named "Biluochun" because of its white hair, silvery green color, attractive emerald and curled into snails. This kind of tea is a famous tea in China, and it is often used as a high-grade gift.
Oolong tea is a famous tea unique to China. Modern scientific research at home and abroad has confirmed that oolong tea has health-care functions such as refreshing the brain, relieving fatigue, promoting fluid production and diuresis, relieving fever and preventing diseases, sterilizing and diminishing inflammation, resolving food stagnation, losing weight and bodybuilding. It also has special functions such as cancer prevention, blood lipid reduction and anti-aging.
People with a bad stomach are not suitable for drinking green tea, and people with a bad stomach are prone to flatulence and other symptoms. At the same time, some people are not suitable for drinking green tea: menstrual women: menstrual blood will consume iron in the body, and tannic acid in tea will hinder the absorption of iron in food; Pregnant women: caffeine in tea will increase the load on the heart and kidneys of pregnant women; Lactating women: tannic acid in tea affects breast blood circulation and inhibits milk secretion; Menopausal women: Drinking green tea may lead to rapid heartbeat and poor sleep quality.