1, lowering blood pressure and blood lipid: Tea contains tea polyphenols, vitamin C and vitamin P, which has a good effect on preventing and treating hypertension. Drinking Pu 'er tea can cause vasodilation, blood pressure drop, heart rate slowdown, cerebral blood flow reduction and other physiological effects, and also has a good effect on softening blood vessels.

2. Anti-cancer and anti-cancer: Vitamins C and E in tea can block the synthesis of nitrosamines and have a good effect on the prevention and treatment of cancer. At the same time, scientists have shown through a large number of population studies that people who have the habit of drinking tea have a relatively low probability of developing cancer.

3, protect teeth: Pu 'er tea leaves contain effective ingredients such as fluorine, which has a good effect on protecting teeth, and often gargle with tea leaves, which also has a good effect on bad breath.

The disadvantages of drinking cooked tea:

1, not suitable for drinking fresh tea, because fresh tea has a short storage time and contains more unoxidized polyphenols, aldehydes and alcohols, which has a strong stimulating effect on human gastrointestinal mucosa and is easy to induce stomach diseases. Therefore, drink less new tea, and avoid new tea stored for less than half a month, otherwise there will be many disadvantages;

2, it is not appropriate to drink tea on an empty stomach. Drinking tea on an empty stomach will dilute gastric juice, reduce digestive function, increase water absorption rate, and lead to a large number of bad ingredients in tea entering the blood, causing dizziness, palpitation, weakness of hands and feet and other symptoms.

3, fever is not suitable for drinking tea, tea contains theophylline, which has the effect of raising body temperature. Drinking tea for patients with fever is tantamount to "adding fuel to the fire".

Extended data:

When people relax in spring, they can choose Pu 'er tea with a certain degree of natural fermentation, or Pu 'er tea with a mixture of raw and cooked. This kind of tea is warm and active, which is more conducive to dispersing the cold evil accumulated in the human body in winter, promoting the growth of human yang, invigorating people's spirit, eliminating spring sleepiness and enhancing their resistance to diseases. It is advisable to drink raw tea in summer, which is slightly bitter and cold. Has the effects of clearing away heat, relieving summer-heat, detoxicating, reducing dryness, quenching thirst, promoting fluid production, and invigorating heart.

Raw tea is rich in tea polyphenols, caffeine, amino acids, vitamins and other nutrients. Drinking it not only has the effect of relieving summer heat, but also increases nutrition. Dry weather in autumn often makes people thirsty. It is advisable to drink Pu 'er tea with half-fermented degree, or to mix raw tea with cooked tea, which will have both effects. This kind of tea is moderate, between raw tea and cooked tea, neither too hot nor too cold, which is very suitable for autumn climate. Keeping in good health in winter focuses on keeping warm from the cold and improving disease resistance.

At this time, it is advisable to drink cooked tea, which is brownish red in color, moist and full, and sweet in taste. Be good at storing yang, generating heat to warm the abdomen, strengthening tonic, adding milk and sugar to adjust fragrance, thus enhancing the adaptability of human body to winter climate. There is such a narrative in the ancient book Interview with Mao Ting: Pu 'er tea has the function of "helping digestion, dispelling cold and detoxifying"

References:

Why is Pu 'er tea favored by the Foreign Minister? Efficacy and Function of Pu 'er Tea-People's Network