1, drinking tea can lose weight

Tea contains catechins, cholestenone, caffeine, inositol, folic acid, pantothenic acid and other components, which have the effect of preventing and inhibiting obesity under the comprehensive action.

2. Drinking tea can prevent tooth decay.

Drinking tea or gargling and brushing teeth with tea can not only eliminate bad breath, but also prevent dental caries. Since the 1970s, the efficacy of tea in preventing dental caries has been studied, such as drinking tea, gargling with tea soup, brushing your teeth, or using toothpaste containing tea, but brushing your teeth with tea soup is the best. This is because tea contains fluorine, which has great affinity with calcium in teeth and can become a kind of "neon apatite" which is difficult to dissolve in acid.

3. Tea can prevent cardiovascular diseases.

Drinking tea also reduces cardiovascular diseases such as hypertension and cholesterol.

4. Tea is a good medicine for intestinal diseases.

Polyphenols in tea can solidify and precipitate protein. Tea polyphenols combined with single-celled bacteria can coagulate the egg itself and kill the bacteria. If the harmful cholera bacteria, typhoid bacilli and Escherichia coli are soaked in strong tea soup for a few minutes, most of them will lose their mobility, which is good for preventing intestinal infectious diseases.

The disadvantages of drinking tea

1, affecting normal digestion

The normal gastric juice secreted by a person every day is 1.5-2.5 liters, which can reasonably digest the food that a person takes in every day. When drinking a lot of strong tea, it will dilute the gastric juice, reduce the concentration of gastric juice, so that gastric juice can not digest food normally, resulting in indigestion, abdominal distension, abdominal pain and other symptoms, and some even cause duodenal ulcer.

2. Tea hinders the body's absorption of iron.

Tea contains tannic acid, black tea contains about 5%, and green tea contains about 10%. When people drink a lot of strong tea, the combination of tannic acid and iron will be more active, which will bring obstacles and influence to the absorption of iron and make people show iron deficiency anemia.

3. Drinking strong tea is prone to constipation.

Tannic acid in tea can not only combine with iron, but also with protein in food to form a massive tannic acid protein, which is not easy to digest and absorb, leading to constipation. For the elderly with constipation, constipation will be more serious.

4. Strong tea causes high blood pressure and heart failure.

Caffeine in strong tea can make the human heart beat faster, thus raising blood pressure; At the same time, a large amount of strong tea liquid enters the blood vessels, which can increase the burden on the heart, produce discomfort symptoms such as chest tightness and palpitation, and aggravate the degree of heart failure. Everything is measured. Drinking light tea can keep you healthy, while drinking strong tea is harmful to your health.