Do you need a reason to drink tea? No? Yes?

Actually, you don’t need a reason to drink tea. You don’t even need a reason to like someone, let alone a cup of tea. But when tea becomes a part of your life as a hobby, I believe every tea lover wants to know more and understand it better. So even if you don’t need a reason to drink tea, you can still learn about every aspect of it and become a well-informed tea enthusiast.

 

 

The medicinal use of tea has a history of several thousand years in China. Legend has it that "Shennong tasted hundreds of herbs and encountered seventy-two poisons in a single day, but tea cured him." Many historical records document the medicinal value of tea in detail. The main pharmacologically active components in tea are tea polyphenols, caffeine, and lipopolysaccharides. As a beverage, its range of pharmacological effects is unmatched by other drinks.

 

Pharmacological Effects of Tea — Cancer Prevention.

Studies have confirmed that tea polyphenols can block the formation of carcinogenic nitrosamines in the human body and have the ability to directly kill cancer cells and enhance immune function. Green tea shows the strongest blocking effect, with a rate of over 90%. It is followed by scented tea, oolong tea, and black tea. Experiments have shown that brewing 1 gram of tea twice with 150 ml of water each time is enough to completely block the synthesis of nitrosamines in the human body.

Pharmacological Effects of Tea — Radiation Protection.

Research indicates that the combined effects of polyphenols, lipopolysaccharides, vitamin C, and vitamin A in tea provide radiation protection. In particular, tea polyphenols and their oxides have the ability to absorb radioactive substances. Drinking tea can effectively prevent the decrease in white blood cells caused by radiation. Cancer patients undergoing radiation therapy who drink soluble tea can alleviate or reduce side effects such as nausea, vomiting, loss of appetite, and diarrhea. Clinical trials have confirmed that for patients with mild radiation sickness caused by radiotherapy, treatment with tea extracts has an effectiveness rate of over 90%. For red blood cell reduction, the effectiveness rate is over 80%.

 

Pharmacological Effects of Tea — Dental and Eye Protection.

Studies show that drinking tea, rinsing the mouth with tea, and brushing teeth with tea can prevent dental caries. People who regularly drink oolong tea have a 60% lower incidence of tooth decay. This is because tea has a high fluoride content—about 10–15 mg per 100 grams of dry tea leaves, 80% of which is water-soluble. Drinking 10 grams of tea daily can absorb 1–1.5 grams of water-soluble fluoride. Moreover, tea is an alkaline beverage that can inhibit calcium loss in the body, which is beneficial for preventing tooth decay and protecting teeth. The vitamin C and other components in tea can reduce the opacity of the eye lens. Regular tea consumption has positive effects on reducing eye diseases and protecting vision.

Pharmacological Effects of Tea — Prevention of Cardiovascular Diseases.

Tea polyphenols play an important role in human fat metabolism. When cholesterol and triglyceride levels in the body are too high, they can lead to fat deposition on blood vessel walls and the proliferation of vascular smooth muscle cells, resulting in atherosclerosis and other cardiovascular diseases. Tea polyphenols, especially catechins like ECG, EGC, and tea tannins, inhibit the proliferation of arterial smooth muscle cells, have significant anticoagulant effects, promote fibrin dissolution, prevent blood plaque formation, reduce capillary fragility and blood viscosity, and thus help prevent hypertension and atherosclerosis, improve blood circulation, and prevent thrombosis.

 

Pharmacological Effects of Tea — Treatment of Intestinal Diseases.

Organic acids such as fatty acids and aromatic acids in tea have antibacterial effects and can treat bacterial dysentery, chronic ulcerative colitis, ileitis, and other intestinal diseases.

Pharmacological Effects of Tea — Promoting Salivation, Quenching Thirst, and Relieving Heat.

Polyphenols, sugars, pectin, and amino acids in tea chemically react with saliva in the mouth, moistening the oral cavity and creating a cooling sensation. Caffeine can help regulate body temperature, so drinking tea promotes salivation, quenches thirst, and relieves heat. Even on a hot summer day, hot tea is more thirst-quenching than other beverages and provides a longer-lasting cooling effect.

 

Pharmacological Effects of Tea — Weight Loss.

Tea aids digestion and reduces fat. As early as the Tang Dynasty, the "Supplements to the Materia Medica" recorded tea’s weight-loss effects, stating, "Long-term consumption makes one thin." Modern research confirms that compounds in tea, such as caffeine, inositol, folic acid, and aromatic substances, enhance gastric juice secretion and regulate fat metabolism, making tea effective for weight loss.

Pharmacological Effects of Tea — Refreshing the Mind and Relieving Fatigue.

Research confirms that caffeine in tea stimulates the central nervous system, making the mind clear and thinking agile. It also accelerates blood circulation, activates muscles, promotes metabolism, and relieves fatigue.

 

Pharmacological Effects of Tea — Anti-Aging.

Tea polyphenols have strong antioxidant activity and are effective scavengers of free radicals in the human body. Studies show that 1 mg of tea polyphenols is as effective as 9 mg of superoxide dismutase in eliminating harmful free radicals, far surpassing other similar substances. Tea polyphenols control the production of lipid peroxides in the body, preventing aging. They also inhibit fatty acid peroxidation by up to 74%, greatly exceeding the effect of vitamin E.

Pharmacological Effects of Tea — Lowering Blood Sugar and Preventing Diabetes.

Diabetes is a metabolic endocrine disease characterized by high blood sugar, caused by insufficient insulin and high blood glucose levels. Experiments have shown that various cold-brewed green teas have excellent blood sugar-lowering effects. In addition, vitamin C and vitamin B1 in tea promote sugar metabolism in the body. Patients with congenital diabetes can use regular green tea consumption as a complementary therapy, while people without diabetes can drink green tea regularly to prevent the onset of diabetes.

 

In addition to the above effects, tea can also be used as a remedy to prevent the formation of gallstones, kidney stones, and bladder stones; as a diaphoretic for bronchitis and colds; to prevent gout and eliminate harmful salts and toxins accumulated in the body; and to prevent various vitamin deficiencies. Tea is also an important source of copper and iron, which are essential for the formation of hemoglobin and red blood cells, and can therefore be used to treat anemia caused by long-term dietary iron deficiency.

 

 

While tea has significant pharmacological effects, it cannot replace medicine. It is an excellent choice as a healthy daily beverage.