Green tea is the most popular tea in the world. Since green tea has not been fermented, it retains the most original substances in the fresh leaves of the tea tree. Among them, nutrients such as tea polyphenols, amino acids, and vitamins have been retained to a large extent, which provides the basis for the health care effects of green tea.
Because of this, green tea is becoming more and more popular. Let's take a look at the health benefits of drinking green tea regularly.
1. refreshing
Tea has a refreshing effect. The reason why tea is refreshing is because it contains caffeine, which can excite the central nervous system and cerebral cortex to a certain extent, and has a refreshing effect.
2. Sterilize and reduce inflammation
Studies have shown that the catechins in green tea have an inhibitory effect on some bacteria that cause diseases in the human body. Tea polyphenols have a strong astringent effect, have obvious inhibitory and killing effects on pathogens and viruses, and have obvious anti-inflammatory effects. In spring, viruses and bacteria breed. Drink more green tea to stay healthy.
3. Promote digestion
The "Supplementary Materials on Materia Medica" of the Tang Dynasty recorded the effect of tea on "long-term eating and slimming", because drinking tea can promote digestion.
The caffeine in tea can increase the secretion of gastric juice and accelerate the digestion and metabolism of food. The fiber in tea can also promote gastrointestinal motility. Big fish and big meat remain undigested. Drinking green tea can aid digestion.
4. Reduce the risk of cancer
Unfermented green tea prevents polyphenols from being oxidized. Tea polyphenols can block the synthesis of various carcinogens such as nitrosamines in the body, and can scavenge free radicals and reduce the damage of free radicals to related DNA in cells. There is clear evidence that free radicals can cause a variety of unpleasant symptoms in the body. Among them, cancer is the most serious one. Regular consumption of green tea eliminates free radicals in the body, thereby reducing the risk of cancer.
5. Reduce radiation damage
Tea polyphenols and their oxidation products have the ability to absorb radioactive substances. Clinical trials by relevant medical departments have confirmed that cancer patients may suffer from mild radiation sickness due to leukopenia during radiotherapy, and tea extract is effective in the treatment. Office workers face computers for long periods of time and are unknowingly exposed to radiation damage. Choosing green tea is indeed the first choice for white-collar workers.
6. anti-aging
The polyphenols and vitamins in green tea have strong antioxidant capacity and physiological activity, and can effectively remove free radicals in the human body. Human aging and disease are largely related to excess free radicals in the human body. Experiments have confirmed that the anti-aging effect of tea polyphenols is 18 times stronger than vitamin E.
7. Protect your teeth
The fluoride and polyphenols in green tea are good for your teeth. Green tea tea soup can effectively inhibit the decrease of calcium in the human body, and also has the effect of sterilization and disinfection, which is beneficial to preventing dental caries, protecting teeth, and fixing teeth. According to relevant data, the "tea rinse" test among primary school students has greatly reduced the dental caries rate. At the same time, it can effectively remove bad breath and freshen breath.
8. Reduce blood lipids
Tea polyphenols play an important role in human body fat metabolism. In particular, the catechins ECG and EGC in tea polyphenols and their oxidation products theaflavins help reduce the formation of fibrinogen that increases coagulation viscosity, clear blood clots, and thereby inhibit atherosclerosis.
9. Stress reduction and fatigue
Green tea contains powerful antioxidants and vitamin C, which stimulate the body's production of stress-fighting hormones.
The caffeine in tea can stimulate the kidneys, promote the rapid excretion of urine from the body, eliminate excess lactic acid in the urine, and help the body eliminate fatigue as soon as possible.