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What are The Benefits of Green Tea, and what should I pay attention to when drinking green tea?

The Benefits of Green Tea, and what should I pay attention to when drinking green tea?

What are The Benefits of Green Tea

Green tea is one of the six major teas in China. It belongs to unfermented tea and is the largest type of tea in China. Because green tea is not fermented, it retains the natural substances of fresh leaves, and contains more tea polyphenols, catechins, chlorophyll, caffeine, amino acids, vitamins and other nutrients. Therefore, green tea has special effects such as anti-aging, anti-cancer, anti-cancer, sterilization, and anti-inflammatory.

Although green tea has many health effects, it is not universal. Some people are not suitable for drinking green tea, such as the elderly, people with cold stomachs, pregnant women, and so on. In order to let everyone know more about the efficacy, effects and contraindications of green tea, we make the following arrangements.

First, the efficacy of green tea

The efficacy of green tea is mainly derived from a substance in tea-tea polyphenols. It is a general term for polyphenols in tea, including flavanols, anthocyanins, flavones, flavonols, and phenolic acids.

Help delay aging

Tea polyphenols have strong antioxidant and physiological activities, and are scavengers of free radicals in the human body. According to research by relevant departments, the efficacy of 1 mg of tea polyphenols in removing excess free radicals harmful to human body is equivalent to 9 micrograms of superoxide dismutase (SOD), which is much higher than other similar substances. Tea polyphenols have the effect of blocking lipid peroxidation and eliminating active enzymes. According to the results of the Okuda Takuyong test in Japan, it is confirmed that the anti-aging effect of tea polyphenols is 18 times stronger than vitamin E.

2. Helps suppress cardiovascular disease

Tea polyphenols play an important role in human fat metabolism. The human body has a high content of cholesterol, triglycerides, etc., fat deposits on the inner wall of blood vessels, and vascular plaques and other cardiovascular diseases are formed after the proliferation of vascular smooth muscle cells. Tea polyphenols, especially the catechins ECG and EGC in tea polyphenols and the oxidized product theaflavin, etc., help to suppress this patchy hyperplasia and reduce the formation of fibrinogen with enhanced hemagglutination viscosity. The coagulation becomes clear, thereby inhibiting atherosclerosis.

3. Helps prevent and fight cancer

Tea polyphenols can block the synthesis of various carcinogens such as ammonium nitrite in the body, and have the effect of directly killing cancer cells and improving the body’s immunity. According to relevant data, tea polyphenols (mainly catechins) in tea are beneficial to the prevention and adjuvant treatment of gastric cancer, bowel cancer and other cancers.

4.Helps prevent and treat radiation damage

Tea polyphenols and their oxidation products have the ability to absorb the poisoning of radioactive substances strontium 90 and cobalt 60. According to clinical trials by the relevant medical department, the effective rate of tea extract for mild radiation sickness caused by tumor patients during radiation therapy can reach more than 90%; for hemocytopenia, the effective rate of tea extract is up to 81.7%; better treatment of leukocytopenia caused by radiation radiation.

5.Helps to inhibit and resist viral bacteria

Tea polyphenols have a strong astringent effect, have obvious inhibitory and killing effects on pathogenic bacteria and viruses, and have obvious effects on anti-inflammatory and antidiarrheal. Many medical units in China use tea preparations to treat acute and chronic dysentery, amoebic dysentery, and influenza, and the cure rate is about 90%.

6, help beauty skin care

Tea polyphenol is a water-soluble substance. Washing your face with it can remove the greasiness of the face and condense pores. It has the effects of disinfection, sterilization, anti-aging of the skin, and reduction of damage to the skin by ultraviolet radiation in sunlight.

7, help to refresh the mind

The caffeine in tea can stimulate the central nervous system of the human body, enhance the excitatory process of the cerebral cortex, and have the effect of refreshing, refreshing, and refreshing.

8. Helps diuretic relief

The caffeine in tea can stimulate the kidneys, prompt the excretion of urine from the body, improve the filtration rate of the kidneys, and reduce the retention time of harmful substances in the kidneys. Caffeine also eliminates excess lactic acid in the urine, which helps the body eliminate fatigue as quickly as possible.

9. Helps reduce fat and help digestion

In Tang Dynasty’s “Compendium of Materia Medica”, there is a record that “the long-term diet makes you lean” about the efficacy of tea. The frontier ethnic minorities in China have said, “You can’t go without tea in one day.” Because tea can help digestion and reduce the important function of fat, in today’s fashionable language, it can help “weight loss”. This is because the caffeine in tea can increase the secretion of gastric juice, which can help digestion and enhance the ability to break down fat. The so-called “long diet is thin” is here.

10. Helps protect eyesight

The fluorine content in tea is relatively high. The fluorine content in 100 grams of dry tea is 10 mg-15 mg, and 80% is water-soluble. If you drink 10 grams of tea per person per day, you can absorb 1 mg-1.5 mg of water-soluble fluorine, and tea is an alkaline drink, which can suppress the reduction of calcium in the human body. benefit. According to relevant data, in the “primary school students” tea mouthwash test, the dental caries rate can be reduced by 80%. According to a survey by relevant medical units, 28.6% of cataract patients had tea drinking habits; 71.4% had no tea drinking habits. This is because the vitamin C and other components in tea can reduce the turbidity of the eye crystals. Drinking tea often has a positive effect on reducing eye diseases and protecting eyesight.

1. Drink tea

Because tea is contaminated by harmful substances such as pesticides during the cultivation and processing process, there is always a certain residue on the tea surface. Therefore, the first time tea has the washing effect and should be discarded.

2. Drink tea on an empty stomach

Drinking tea on an empty stomach can dilute gastric juice, reduce digestive function, and increase water absorption rate, causing a large number of undesirable components in tea to enter the blood, causing symptoms such as dizziness, palpitation, and weakness in limbs.

3. Like drinking new tea

Because the new tea has a short storage time, it contains a lot of non-oxidized polyphenols, aldehydes, and alcohols, which has a strong stimulating effect on the human gastrointestinal mucosa and is easy to induce gastric disease. Therefore, it is advisable to drink less new tea, and to avoid drinking new tea stored for less than half a month.

4. People with cold stomach should not drink too much, it will cause gastrointestinal upset.

5. Neurasthenia and insomniacs should not drink tea before going to bed. Women who are breastfeeding should also drink tea less, because tea has astringent effect on milk.

5, avoid taking green tea medication, avoid drinking overnight tea. Tannic acid in green tea will combine with many drugs to produce precipitation, hinder absorption, and affect the efficacy. As the saying goes: tea can be detoxified. Overnight tea time is too long, the vitamins have been lost, and the nutrients in the tea will become the nourishment for bacteria and mold to reproduce.

Avoid drinking people:

1, pregnant women avoid drinking tea, especially should not drink strong tea.

Tea contains a large amount of tea polyphenols and caffeine, which have many unfavorable factors for the growth of the fetus in the mother’s abdomen. In order to allow the fetal intelligence to develop normally and avoid excessive stimulation of the caffeine on the fetus, pregnant women should drink less or no tea.

2, women should not drink strong tea during lactation.

Drinking strong tea during lactation period, too much caffeine will enter the milk, and children will indirectly get excited after breastfeeding, which may cause less sleep and more crying.

3, fever avoid drinking tea.

The caffeine in tea can not only raise the body temperature, but also reduce the efficacy.

4, liver patients do not drink tea.

Most of the caffeine and other substances in tea are metabolized by the liver. If the liver is diseased, drinking too much tea beyond the liver’s metabolic capacity will damage the liver tissue.

5. Avoid drinking tea in patients with urinary stones.

Urinary calculi are usually calcium oxalate stones. Because tea contains oxalic acid, it will form stones with the excretion of calcium in the urine. If patients with urinary stones drink a lot of tea, it will worsen the disease.

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