What are the benefits and disadvantages of drinking more green tea?

There are benefits to drinking more green tea!! It doesn't hurt to think so!!

The benefits of drinking more green tea are as follows, and there is no harm in doing so.

1. Sunscreen. A study in the United States pointed out that the catechins in green tea have strong antioxidant properties, and after applying skin care products containing green tea ingredients to **, even if exposed to the scorching sun, it can reduce the peroxide that causes sunburn, sagging and roughness by about 1 3. This proves that the ingredients in green tea have a sunscreen effect.

2. Radiation protection.

For people with a stressful and busy life, the easiest way to resist computer radiation is to drink 2 3 cups of green tea and eat an orange every morning. Because tea is rich in provitamin A, it can be quickly converted into vitamin A after being absorbed by the body. Vitamin A synthesizes rhodopsin, which allows the eye to see more clearly in low light.

Therefore, green tea not only eliminates computer radiation, but also protects and improves eyesight.

3. Lipid lowering. Drinking tea can reduce blood lipids and cholesterol in the blood, making the body lighter. This is because of the comprehensive coordination of phenolic derivatives, aromatic substances, amino acids and vitamins in tea, especially the comprehensive effect of tea polyphenols and theophylls and vitamin C, which can promote fat oxidation, help digestion and reduce lipids**.

4. Anti-bad breath.

Green tea contains fluoride, in which catechins can inhibit caries-producing bacteria and reduce the occurrence of plaque and periodontitis. The tannic acid contained in tea has a bactericidal effect and can prevent the growth of bacteria from food scraps, so it can effectively prevent bad breath.

5. Anti-aging.

The antioxidants contained in green tea help fight aging. Because of the process of human metabolism, if peroxidation, a large number of free radicals will be produced, which is easy to age, and will also cause cell damage. SOD (Superoxide Dismutation) is a free radical scavenger that can effectively scavenge excess free radicals and prevent free radical damage to the human body.

The catechins in green tea can significantly increase the activity of SOD and scavenge free radicals.

1. The benefits of drinking green tea.

1. Anti-aging: Green tea contains tea polyphenols, which have strong antioxidant properties and can remove free radicals from the human body, so it can delay aging.

2. Anti-cancer: The tea polyphenols in green tea can block the synthesis of carcinogens such as ammonia nitrite in the body, and can also kill cancer cells and improve the body's immunity, so it also has anti-cancer effects.

3. Beauty and beauty: In addition to drinking, green tea can also be used to clean the face, it can converge pores, remove greasy substances on the face, and have the effect of disinfection and sterilization, so it also has the effect of beauty and beauty.

Second, the disadvantages of drinking green tea.

1. Pesticide residues: Green tea will generally spray some pesticides in order to grow better, but pesticides are harmful substances, it may remain on the surface of tea, and it will affect health after drinking.

2. Gastrointestinal discomfort: There are a small number of people with weak gastrointestinal function, so drinking green tea may cause gastrointestinal discomfort and insomnia.

3. Affect the absorption of iron by the human body: tea contains tannic acid, which will bind to iron, so it will affect the absorption of iron by the human body, resulting in iron deficiency anemia in people.

4. Cause constipation: People who drink tea often may also cause constipation, the main reason is that tannic acid will combine with the protein in food to form lumps, which will cause constipation.

There are so many introductions to the benefits and disadvantages of drinking green tea, so friends who love tea should pay attention to understanding the benefits and disadvantages of tea, and then combine their own physical conditions to drink tea that suits them, which is better for health. In addition, when drinking green tea, be careful not to drink it at night, and not on an empty stomach, otherwise it will lead to some diseases in the body.

Although drinking tea is beneficial, there are also some substances that contain harmful effects on the body.

Green tea is rich in vitamins, chlorophyll and other substances, which can be drunk in moderation, which can clear heat and detoxify, refresh and refresh the brain, and can also play an anti-role. Let it inhibit the effect of cardiovascular and cerebrovascular diseases. But people with gastrointestinal disorders are better off not drinking.

Yuqiao is also rich in tea polyphenols, and drinking green tea regularly can resist free radicals and help the human body resist oxidative aging. I also think that containing caffeine can also make people feel excited and refreshing, because green tea is cold, patients with stomach problems may drink green tea may cause weakened digestive function, resulting in indigestion.

Patients with gastric ulcers.

The caffeine in tea can promote gastric acid secretion, and drinking a large amount of green tea will greatly increase gastric acid secretion and affect ulcers. The healing of the face aggravates the condition. Patients with ulcer disease should burn strong tea at night, especially not drink a lot of tea.

In addition, people who have not returned it should not be addicted to too much, as too much will cause gastrointestinal discomfort.

People with neurasthenia or insomnia.

Green tea can be refreshing, because the caffeine in green tea has an obvious stimulant effect on the central nervous system of the human body, but it has become a burden for neurasthenia and insomnia, especially for agricultural research. It can put the human brain in a state of overexcitement and not get rest. Therefore, people with neurasthenia and insomnia should drink less tea, especially before going to bed.

People with constipation. Because the catechin polyphenols of green tea have a certain astringent effect on the gastrointestinal membrane, it affects the digestion and absorption of food, and there are dry stools that cause constipation or aggravation.

People with heart disease or high blood pressure.

If it is too cold, drinking strong tea will increase the burden on the heart, which will increase the heart rate and blood pressure, which is extremely unfavorable to patients with heart disease and high blood pressure.