The ancients in China once thought that tea has ten virtues: dispersing depressed qi, expelling sleeping qi, nourishing vitality, eliminating evil spirits, benefiting human heart, respecting god, tasting taste, maintaining health, cultivating monasticism and aspiring to Kaya. In the Tang Dynasty, Lu Tong's Seven Bowls of Tea Songs also gave a very vivid description of tea: "One bowl moistens the throat, two bowls are lonely and boring, and three bowls are boring, but there are only five thousand volumes of words. Four bowls of sweat, life is not smooth, scattered to the pores. Five bowls of bones and muscles are clear, and six bowls are immortal. I can't eat seven bowls, but I feel the wind blowing under my arm. " As we all know, drinking tea has many benefits. But why does drinking tea have many benefits? For the average person, this is knowing it but not knowing why. With the development of science, it was not until1at the beginning of the 9th century that the composition of tea industry became clear. After modern scientific separation and identification, tea contains more than 450 organic chemical components and more than 40 inorganic mineral elements. Organic chemical components and inorganic mineral elements in tea contain many nutrients and medicinal components. Organic chemical components mainly include tea polyphenols, plant alkaloids, protein, amino acids, vitamins, pectin, organic acids, lipopolysaccharides, sugars, enzymes and pigments. Tieguanyin contains organic chemical components such as tea polyphenols, catechins and various amino acids, which are significantly higher than other teas. Inorganic mineral elements mainly include: potassium, calcium, magnesium, cobalt, iron, manganese, aluminum, sodium, zinc, copper, nitrogen, phosphorus, fluorine, iodine and selenium. Tieguanyin contains more inorganic mineral elements such as manganese, iron, fluorine, potassium and sodium than other teas. Twenty-three effects of tea (1) Sleep less (2) soothe the nerves (3) improve eyesight (4) clear the brain (5) quench thirst and produce fluid (6) clear away heat (7) relieve summer heat (8) detoxify (9) digest (10) sober up (160) Compendium of Materia Medica: To cure acne itching, it is advisable to burn tea and cigarettes in the room. We often see that some people drink Longjing tea or scented tea, and when they go to the toilet hard, they stop drinking tea. Some people will be constipated after drinking tea; Some people are hungry after drinking tea; Some people can't sleep all night as soon as they drink tea; Some people's blood pressure will rise after drinking tea; Some people will get drunk when drinking tea, and there will be strange phenomena such as palpitation, dizziness, weakness of limbs, stomach discomfort, instability and hunger. Therefore, we should pay attention to the aftercare of tea drinkers. The causes of tea drunkenness are nothing more than drinking tea on an empty stomach, hypoglycemia or allergy to aminophylline, excessive fatigue or excessive excitement. Under normal circumstances, eating some fruit or sugar water properly, or letting patients have a rest and temporarily stopping drinking tea, will help the recovery of drunken patients. People's body is tall and thin, people's personality is soft and rigid, people's spirit is deep and high, and people's innate endowment is strong and weak, which should be treated differently. Generally speaking, fat people have more phlegm and dampness, more fear of cold and more depression of qi; Thin people have more fire, more damp heat and more yin deficiency. Southerners are full of fire, and their constitutions tend to be yin deficiency and damp heat; People in the north are cold, and their constitutions tend to be yang deficiency and phlegm dampness. In terms of lifestyle, smokers tend to be damp-heat, yin fire and phlegm-dampness; Alcoholics tend to have yin deficiency and yang hyperactivity, and the lower jiao is damp and hot. Professionally, intellectuals and office workers are relatively quiet and inactive, so they are more external and internal physically; Manual workers, on the other hand, are active and quiet, so there is weakness outside and reality inside. In terms of drinking tea, some people should pay attention to it and prefer a certain kind of tea, so that under the influence of long-term drinking habits, their physique will also change. Some people never drink tea. When they first started drinking tea, they should be light in quantity and soft in quality, and choose a more peaceful period in tea drinking time. The choice of tea should vary from person to person, and we should also pay attention to the different States of the human body. Adolescent sexual development, mainly green tea; Girls in the menstrual period, female menopause, uneasy mood, drink scented tea to soothe the liver and relieve depression, regulate qi and regulate menstruation; Women postpartum and manual workers should use black tea; Green tea is suitable for mental workers; Old people with yin deficiency of liver and kidney or yin and yang deficiency can drink black tea.