China is the hometown of tea. After tea was discovered by our ancestors, its utilization mode has gone through several stages of development and evolution, and it has only progressed to today's drinking mode of "boiling water brewing loose tea". In ancient times, our ancestors only used tea as medicine. This is consistent with the record in Shennong Materia Medica that Shennong tasted a hundred herbs and encountered 72 poisons every day, but he solved it with tea. Tea has the functions of clearing away heat and toxic materials, refreshing the brain, and is still used as medicine by people in some areas. At that time, people cut branches from wild tea trees, picked bud leaves, boiled them in water and drank their juice. This is the original "porridge tea method". The tea cooked in this way has bitter taste, so it was called "bitter tea" at that time.

There has never been a fairy in the world, and tea is certainly not an elixir; However, because tea contains a lot of ingredients with high nutrition and medicinal value, it is a good drink beneficial to human health.

According to analysis, tea contains more than 300 chemical components, such as protein, fat, amino acids, carbohydrates, vitamins and tea polyphenols, theanine, aromatic oil, lipopolysaccharide and so on. , are indispensable important nutrients and medicinal substances for human body, and have multiple functions. Some of these ingredients are actually a big category, such as tea polyphenols, including more than 30 kinds of phenols; Vitamins can be divided into vitamins and inositol 10. As for the role of tea in disease prevention and treatment, there are many records in ancient books in China, which have also been affirmed by medical circles at home and abroad. For example, tea has different degrees of efficacy in preventing and treating dysentery, gastroenteritis, nephritis, hepatitis, diabetes, hypertension, arteriosclerosis, coronary heart disease, cancer, leukopenia and radiation injury. For example, tea, especially green tea, has an anti-cancer effect. According to a survey in Shizuoka Prefecture, Japan, it is found that the incidence and mortality of cancer in tea areas, especially green tea producing areas, are significantly lower than those in other places. Now it is basically clear that the main anticancer component in tea is catechin; This component is about 15%-20% in green tea. In addition, vitamins C and E contained in tea also have certain anti-cancer auxiliary effects. Perhaps because of this, tea has various commendations abroad, such as "safe drinking", "healthy drinking" and "healthy and longevity drinking".

In Han Bin and Han Wenling's book "The Secret Recipe of Drinking Tea for Health Preservation and Treating Diseases with Medicinal Tea", the section "Understanding and Application of Tea in Modern Medicine" lists the functions of 3 1 tea, which should be very comprehensive:

1, which helps digestion. 2, refreshing. 3. prolong life. 4. Reduce blood fat and lose weight. 5. Vision. 6, diuresis, swelling. 7, antibacterial and anti-inflammatory. 8. Anti-arteriosclerosis. 9. Lower blood pressure and prevent hypertension. 10, prevention and treatment of coronary heart disease. 1 1, radiation resistance. Such as radiation from television. 12, soothe the nerves, calm down and cultivate temperament. 13, nutrients. 14, can treat diabetes. 15, beauty function. 16, anemia prevention and treatment. 17, anti-fatigue, relieve fatigue. 18, sober up and detoxify. 19, foaming to quench thirst. 20. Anti-cancer. 2 1, benefiting qi and strengthening the body. 22, antibacterial diarrhea. 23, detoxification. 24, increase the adaptability of the human body. 25. Anti-tuberculosis. 26, in addition to odor, eliminate bad breath. 27. Raise white blood cells and treat leukopenia. 28, anti-virus. 29. Protect your teeth. 30. Adjust the acid-base balance of body fluids. 3 1, anti-inflammatory and antibacterial for external use.

Black tea can help gastrointestinal digestion, stimulate appetite, diuresis, eliminate edema and strengthen myocardial function.