Tea is a natural health drink for most people and has many benefits. Proper drinking can quench thirst, promote digestion, resolve phlegm, refresh and improve eyesight, and prevent various diseases. The benefits of drinking tea are as follows:
1. Anti-cancer or anti-cancer Cancer has become one of the biggest threats to human health. Tea contains catechins, especially catechins in green tea, accounting for 15%-20% of tea. Flavonoids such as catechins have certain anticancer effects. Tea also contains a certain amount of vitamin C and vitamin E, which also has an auxiliary anti-cancer effect.
2, radiation protection, because tea contains polyphenols, ester polysaccharides, vitamin C and carotene, these nutrients together can absorb some radioactive strontium, so that it can be excreted in the form of feces. The components in tea can also prevent the external irradiation damage caused by proton beam, X-ray or γ-ray, and can effectively prevent some hazards brought by radioactive substances to human body.
3. Tea helps to reduce the risk of cardiovascular diseases. One of the main causes of hypertension and coronary heart disease is the increase of blood lipid and cholesterol, which leads to atherosclerosis. Drinking tea can effectively reduce blood lipid and cholesterol levels, because tea polyphenols can inhibit the proliferation of arterial smooth muscle cells, and have obvious anticoagulant effect, promote fibrinolysis, prevent the formation of blood spots, and reduce capillary fragility and blood viscosity.
4. Tea also has the advantage of sterilization. Studies have shown that tea can inhibit the growth and reproduction of harmful bacteria, such as salmonella, staphylococcus, anthrax, Bacillus subtilis, diphtheria, Proteus and so on.
5. Tea can quench thirst and relieve summer heat. Drinking a cup of green tea in hot summer can make you feel drooling and cool, which is a good summer product. Because polyphenols in tea, as well as sugars, pectin, amino acids and other components react with saliva, the mouth is moist and produces some coolness. In addition, caffeine in tea can also regulate the body temperature center inside the human body, so as to achieve the purpose of regulating body temperature.
Tea has many benefits, but you should also be careful not to overdo it when drinking tea. A large number of tea leaves accumulate in the intestine, which may also affect the normal activity of the diaphragm and may cause a burden on the heart.
In addition, don't drink too strong tea often, because too much strong tea will lead to more caffeine intake. When absorbed into the blood, it may cause nervous system excitement, and some allergies or muscle tremors may occur. At the same time, too strong tea may stimulate the gastrointestinal tract, and it is not advisable to drink too strong tea on an empty stomach. Drinking tea after drunkenness may also increase the burden on the heart, so drinking too much strong tea after drinking is not recommended.