The World Health Organization has investigated the advantages and disadvantages of beverages in many countries and finally concluded that tea is the best beverage for middle-aged and elderly people. According to scientific analysis, tea leaves contain protein, fat, more than 10 vitamins, and nearly 300 components such as tea polyphenols, caffeine, and lipopolysaccharides, which help regulate physiological functions and provide various aspects of health care and pharmacological effects.

Since tea can prevent the increase of sterols in the human body and has the effect of preventing myocardial infarction, tea polyphenols can also清除 excessive free radicals in the body, inhibiting and killing pathogens. In addition, tea has effects such as refreshing the mind, eliminating fatigue, and antibacterial properties. This is necessary for middle-aged people. The European Community can also purify water quality and reduce the harm of radioactive substances to the human body. Therefore, in the current situation of serious natural environmental pollution, especially for people living in cities, it is more important to often drink tea.

There are many benefits of drinking tea, summarized in 15 points:
(1) Tea can make people mentally refreshed, enhance thinking and memory ability.
(2) Tea can eliminate fatigue, promote metabolism, and maintain the normal functions of the heart, blood vessels, gastrointestinal tract, etc.

(3) Drinking tea is very beneficial for preventing dental caries. According to a survey in the UK, children who often drink tea can reduce dental caries by 60%.
(4) Tea leaves contain many trace elements beneficial to the human body.

(5) Tea leaves have the effect of inhibiting malignant tumors, and drinking tea can significantly 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 plaques in the vascular intima, preventing atherosclerosis, hypertension, and cerebral thrombosis.
(8) Drinking tea can excite the central nervous system and enhance athletic ability.

(9) Drinking tea has good weight loss and beauty effects, especially Oolong tea which is particularly effective in this regard.
(10) Drinking tea can prevent senile cataracts.

(11) The tannic acid contained in tea leaves can kill多种 bacteria, thus preventing oral inflammation, pharyngitis, and enteritis, dysentery, etc., which are prone to occur in summer.
(12) Drinking tea can protect the hematopoietic function of the human body. Tea contains anti-radiation substances. Drinking tea while watching TV can reduce the harm of TV radiation and protect eyesight.

(13) Drinking tea can maintain the normal acid-base balance of the blood. Tea contains caffeine, theophylline, theobromine, xanthine, and other alkaloid substances, making it an excellent alkaline beverage. Tea can be quickly absorbed and oxidized in the body, producing relatively high concentrations of alkaline metabolites, thereby及时 neutralizing acidic metabolites in the blood.
(14) Prevents heatstroke and cools down. Nine minutes after drinking hot tea, skin temperature drops by 1-2 degrees Celsius, making people feel cool and dry, while drinking cold drinks does not significantly reduce skin temperature. Reasonable tea drinking is beneficial without harm to the human body, but if unreasonable, it can be harmful.

(15) Can quench thirst and also clear heat and detoxify.
Drinking tea should consider one's constitution. Traditional Chinese medicine believes that people have different constitutions, such as燥热 and虚寒, and teas经过 different production processes also have cool and warm properties, so different constitutions require different teas. People with a燥热 constitution should drink cool tea, while those with a虚寒 constitution should drink warm tea.
It is best to drink Black tea in the evening. Because Green tea is unfermented tea with high tea polyphenol content, retaining its original properties, which is relatively stimulating; black tea is fully fermented tea, and although the tea polyphenol content is low, after the "ripening" process, it is less stimulating, relatively mild and gentle, suitable for evening drinking. Especially for people with weak spleen and stomach, adding some milk to black tea can have a certain warming effect on the stomach.
