The harm of drinking tea for a long time. Many people in life have a soft spot for tea and like to drink tea every day. It is said that drinking tea can refresh the mind and relieve fatigue. Drinking tea is also good for health. So, how about drinking tea for a long time? The following are the hazards of drinking tea for a long time.

The harm of drinking tea for a long time 1 1. Drinking a lot of strong tea often leads to a lot of physical discomfort, such as easy dilution of gastric juice and inability to digest normally.

Besides, 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 cause iron deficiency anemia.

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

Finally, strong tea can lead to 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.

5. Drinking tea for a long time contains more caffeine, and caffeine can promote urinary calcium excretion and bone loss.

6, drinking tea often can easily cause anemia. Modern medical research has found that drinking tea, especially after meals, will excrete iron in food and cause anemia because it is not easy to absorb.

7. Drinking tea often will lead to the loss of various nutrients. Nutrition experts have found that excessive drinking tea will increase urine output, resulting in the loss of important nutrients such as magnesium, potassium and vitamin B. Excessive drinking of strong tea by the elderly will also increase the heart load.

8. Drinking a lot of tea, especially fresh tea, will lead to drunk tea. The content of caffeine, active alkaloids and various aromatic substances in new tea is high, which is easy to excite people's nervous system and is very unfavorable to patients with neurasthenia and cardiovascular and cerebrovascular diseases.

The benefits of drinking tea for a long time

1, insist on drinking tea for a long time-it can deeply detoxify.

China has always had a tradition of drinking tea to treat abdominal distension, dysentery and indigestion. For example, Pu 'er tea, rich in dietary fiber, is the best "cleaner" for the stomach. Most of the food in the restaurant wins by "taste". No matter how greasy or spicy the food is, it is easy to induce constipation after eating. Moreover, drinking a cup of Pu 'er tea can promote gastrointestinal peristalsis, discharge a large number of harmful substances accumulated in the body, and avoid constipation.

Drinking tea can quench thirst, relieve summer heat, detoxify and relieve constipation. Drinking tea can improve the intestinal microbial environment and regulate the stomach.

2, insist on drinking tea for a long time-you can "three drops"

Tea has the functions of reducing blood fat, blood sugar, blood pressure, warming spleen, promoting digestion, reducing blood fat, reducing weight and blood pressure, nourishing heart and calming nerves. Tea polysaccharide not only has anti-inflammatory, anticoagulant, antithrombotic and immune function enhancing effects.

3, insist on drinking tea for a long time-it can resist aging.

Modern medicine believes that improving the structure of drinking tea can delay human aging. Drinking tea is one of the contents to improve the diet structure. Because polyphenols in tea can effectively scavenge free radicals, tea is rich in vitamins C and E, which has strong antioxidant activity and plays a certain role in delaying aging.

4, insist on drinking tea for a long time-it can prolong life.

Experts studied the tea polyphenols in China green tea. The biggest feature of green tea is that it contains very high tea polyphenols, and a good green tea can contain more than 30%. Tea polyphenols are the characteristic components of green tea. Drinking green tea regularly can prevent heart disease, reduce the risk of cancer, protect the liver, sterilize and protect teeth. These effects are related to tea polyphenols.

Experiments show that making tea with cold water, especially with rough old tea leaves, is helpful to treat diabetes, and it is also recorded in China Tea Classic. Now some people in Japan let diabetics drink coarse old tea. Therefore, you can drink good tea and tender tea without spending too much money.

5, long-term adherence to tea-you can beauty beauty.

Tea is a natural health drink. If you drink it in moderation for a long time, the rich biochemical components in tea, such as tea polyphenols, amino acids, vitamins, minerals, pectin, etc., can help us keep in touch with the meat cutters of the years and make the beautiful face last longer.

6, insist on drinking tea for a long time-you can lose weight.

The study found that drinking 8 grams of oolong tea every day can make half of obese people lose weight. Another study confirmed that drinking 2 cups of oolong tea with high concentration of catechins every day can reduce the weight, waist circumference and body fat rate of obese men after three months.

Harm of drinking tea for a long time 2 Can you drink tea on an empty stomach?

You can drink tea on an empty stomach, but it is not recommended to drink tea on an empty stomach, because drinking tea on an empty stomach is harmful to the body, which will dilute the gastric juice in the stomach and affect the digestive function. Some people who drink tea on an empty stomach will also have dizziness, palpitation and other symptoms similar to drunkenness, which is not good for their health.

The harm of drinking tea on an empty stomach

1, when drinking tea on an empty stomach, it can make people absorb tannic acid contained in tea as soon as possible. This substance has a strong astringent effect, which will converge the intestine and affect the digestive function of the intestine. It is easy to cause constipation after a long time, which is not good for human intestinal health. After drinking tea on an empty stomach to absorb some substances, it will also stimulate the digestive function of the human stomach, which will easily lead to loss of appetite and gastrointestinal discomfort.

2. When people drink tea on an empty stomach, they will absorb a lot of theophylline, which will also have adverse effects on the human body, make the adrenal cortex function in the human body hyperactive, and make tea drinkers feel uncomfortable such as palpitation and frequent urination. In addition, people who drink caffeine on an empty stomach will have adverse reactions such as weakness of hands and feet and dizziness.

Drinking tea on an empty stomach is harmful to people. Drinking tea immediately after a meal is also harmful to health, because drinking tea on an empty stomach will dilute gastric juice, but drinking tea immediately after a meal will affect the digestive function of the stomach and lead to indigestion. In addition, tannic acid in tea will combine with protein in food to generate some tannic acid protein. If these substances are not metabolized in time, stones will be formed in vitro.

Harm of drinking tea for a long time 3 What if you just drink tea without drinking water?

1, causing water shortage in the body.

In life, many people only like tea, but they are used to using tea instead of water. In fact, it is wrong to do so, because tea soup can't replace water. If you only drink tea for a long time, the water in your body will be lost, which will easily lead to water shortage, make your skin dry and even have adverse effects on your body.

2, increase the burden on the kidneys

If people only drink tea instead of water in daily life, it will increase the burden on the kidneys, because many substances in tea soup need the kidneys to metabolize. If boiled water is not replenished in time, it will affect the metabolic function of the kidney. At this time, the kidney will always work and the renal function will also decline. In severe cases, it will cause high incidence of kidney diseases and affect the normal metabolism of the human body.

3, leading to insomnia

People who only drink tea and don't drink water can't meet the body's demand for water, and can't meet the demand of drinking 8 glasses of water every day. Moreover, when people drink tea as water, it will make the body absorb too many substances harmful to the nerves and irritating to caffeine, which will easily make people's nerves excessively excited, thus leading to a high incidence of insomnia symptoms. If people don't adjust their sleep quality in time, they will obviously decline.

4, affect gastrointestinal function

Drinking tea without drinking water will also have adverse effects on human gastrointestinal function, because some substances contained in tea have obvious stimulating effect on human gastrointestinal mucosa and will damage human gastrointestinal mucosa. If you only drink tea for a long time, it will cause the loss of gastrointestinal digestive function, leading to a high incidence of chronic gastrointestinal diseases and a decline in gastrointestinal digestive function.