The harm of drinking a lot of tea for a long time, drinking tea in moderation every day will not be a problem, but if you drink a lot of tea every day, it will easily lead to a decline in sleep quality. Over time, the brain didn't get enough rest. Let's take a look at the harm of drinking a lot of tea for a long time.

Harm of drinking a lot of tea for a long time 1 Disadvantages of drinking a lot of tea for a long time:

It affects the absorption of iron and leads to insomnia. Everything has two sides, and tea is no exception. Drinking tea has many advantages, but at the same time, it has its disadvantages. Tannic acid in tea will affect the absorption of iron, lead to insomnia and stimulate gastric acid secretion. Oxalic acid in tea can lead to more stones, faster heartbeat and some arrhythmia. Therefore, don't drink too much tea, but drink tea moderately.

Precautions for drinking tea for a long time:

1, don't drink tea after meals.

Many people have the habit of drinking tea after meals, thinking that drinking tea after meals can promote digestion. Actually, this statement is wrong. Tea contains a lot of tannic acid, which can react with iron in food and generate new substances that are difficult to dissolve. Over time, it will cause iron deficiency and even induce anemia. The correct way is to drink tea an hour after meals.

You can't drink tea if you have a fever.

Tea contains theophylline, which can raise body temperature. Drinking tea with fever is tantamount to "adding fuel to the fire", so people with fever can't drink tea.

Step 3 drink tea on an empty stomach

Drinking tea on an empty stomach can easily cause dizziness, weakness of hands and feet, palpitation and other symptoms, and also reduce digestive function, so drinking tea on an empty stomach is absolutely impossible.

The health benefits of drinking tea correctly;

First: excitement.

Tea contains 2% to 4% theanine (caffeine), which can excite the central nervous system, help people to cheer up, improve their thinking, eliminate fatigue and improve work efficiency.

Second: anti-aging effect

Tea contains many trace elements beneficial to human body. Every 500 grams of green tea contains about C 135 mg of vitamin C. Adults can meet half of the vitamin C needed by the human body by drinking two or three cups of green tea every day. Drinking tea can inhibit cell aging, promote metabolism, promote blood circulation to remove blood stasis, prevent arteriosclerosis, and promote the functions of heart, blood vessels, stomach and other organs. Among people who often drink tea, the incidence of hypertension and coronary heart disease is low.

Third: antibacterial and bacteriostatic effects.

Tea polyphenols and tannic acid in tea act on bacteria and have bactericidal effect. Drinking tea is good for people with intestinal diseases. If the skin is painful, ulcerated or scratched, cleaning the affected area with strong tea can diminish inflammation and sterilize. When the mouth is inflamed, ulcerated and sore throat, gargling with tea soup can achieve the purpose of sterilization. In addition, drinking tea regularly can also improve the acid resistance and caries resistance of teeth. Gargling with tea can eliminate bad breath, protect teeth and prevent oral diseases.

Fourth: inhibit the role of cancer cells.

Flavonoids in tea can inhibit malignant tumor, and drinking tea can obviously inhibit cancer cell mutation. Drinking tea regularly, especially green tea, can reduce the risk of uterine cancer by 60%. Even other teas are beneficial to greatly reduce the incidence of uterine cancer.

Fifth: the role of losing weight

Many compounds in tea, such as caffeine, inositol, folic acid, pantothenic acid and aromatic substances, can regulate fat metabolism, especially oolong tea has a good decomposition effect on protein and fat. Japanese women call oolong tea "a panacea for beauty and health". French women call Yunnan Pu 'er tea "scraping camellia oleifera" and "waste tea".

Sixth: diuretic effect

Caffeine and theophylline contained in tea can excite the central nervous system, improve renal function, facilitate urine excretion and make toxic substances excreted quickly.

Seventh: external use

Washing your face and bathing with tea soup can not only reduce the probability of skin diseases, but also make your skin shiny, smooth and soft. Washing hands and feet with tea soup and tea residue can prevent chapping, eczema, itching and deodorization. Washing your hair with tea soup can make your hair black, supple and beautiful.

Drinking a lot of tea for a long time will have an impact on the body, especially for people with bad stomach and weak constitution. You should not drink too much tea every day, so be sure to drink it in moderation. In this way, drinking tea will have a health care effect, otherwise improper drinking of tea will be exhausted, and the drinking substances of tea cannot be absorbed, causing physical discomfort.

Harm of drinking a lot of tea for a long time 2 Some people like to drink tea for self-cultivation, but they drink too much when they are repairing. Just like wine, drinking a small amount is good for your health, but if you exceed that amount, it will hurt you. Drinking a lot of tea for a long time will make people insomnia. Tannic acid in tea will affect the absorption of iron by human body and indirectly lead to anemia. And if you drink herbal tea for a long time, there will be urinary calculi. Drinking tea is good, but don't be greedy. If you drink a lot of tea for a long time, it will be difficult to estimate the harm to your body.

What behaviors of drinking tea are equal to "chronic suicide"?

1, take medicine and drink tea

Caffeine in tea will reduce the efficacy of drugs. If you drink tea after taking medicine, it is equivalent to not taking medicine. So don't drink tea after taking medicine when you are sick.

2. Patients with liver disease drink tea

Because the liver is the largest detoxification organ and the largest metabolic organ. Caffeine and other substances in tea are metabolized by the liver. If you are a patient with liver disease, drinking too much tea will put a heavy burden on the liver, which will further aggravate the condition of liver disease.

3, anemia drinking tea

Because tannic acid in tea will hinder the body's absorption of iron, if you have anemia, drinking a lot of tea will aggravate the symptoms of anemia. Therefore, anemia patients should not drink tea.

4, insomnia patients drink tea

Tea contains caffeine, which can stimulate people's nerves and keep them excited and awake. If you have symptoms of insomnia, drinking tea will make the nerve center more excited, which is not conducive to sleep.

5. Drinking tea has urinary stones

Drinking herbal tea often can actually aggravate the symptoms of urinary calculi, because tea contains calcium oxalate, and urinary calculi are mainly calcium oxalate stones. When people who want to go on a diet drink tea, oxalic acid in tea will combine with calcium in urine to form calcium oxalate, forming small and numerous urinary calculi. Therefore, patients with urinary calculi should drink more water and drink less tea.

Tea is good, but not greedy. Everything should be measured, beyond that limit, your health will be damaged. Tea is a good thing, but drinking tea incorrectly is equivalent to chronic suicide. You must master this degree.

The harm of drinking a lot of tea for a long time is 3 1, which is easy to hurt the stomach;

Drinking tea properly can help us promote digestion; But if you drink a lot of tea for a long time, it will lead to excessive secretion of gastrointestinal hormones, which will lead to certain damage to gastrointestinal mucosa.

2, cause poisoning:

If you drink a lot of tea for a long time, it will easily lead to drinking tea-drinking fluorosis. Drinking tea-drinking fluorosis is a type of chronic endemic fluorosis and a systemic disease caused by drinking high-fluorine brick tea for a long time. In addition, fluoride can easily lead to the decrease of intracellular enzyme activity in vivo, which leads to the synthesis and metabolism of renal protein and enzyme protein, and then leads to renal function damage.

3. Damage to kidney:

Drinking a lot of tea for a long time can easily lead to excessive burden on the kidneys; And too much caffeine intake will also affect the normal function of the kidney. This is because tea contains a certain amount of alkaline theophylline, which easily leads to the dilution of gastric juice, which leads to the inhibition of gastric acid, and finally leads to the formation of pepsin, thus increasing the risk of kidney calculi's disease.

4, cause excitement:

Tea contains certain caffeine substances. If you drink a lot of tea for a long time, caffeine in tea will easily lead to excessive nerve excitement, which will make it difficult to fall asleep at night and cause insomnia, thus affecting the quality of sleep and the study, work and life the next day.

1, often drinking a lot of strong tea can easily lead to physical discomfort, such as dilution of gastric juice, leading to indigestion.

2. If you drink too much tea, the combination of tannic acid and iron will be more active, which will affect the body's absorption of iron, and anemia may occur in the long run.

Excessive drinking tea will increase the burden on human kidneys.

4. Tea contains a lot of caffeine, which will aggravate the condition of patients with gastrointestinal diseases, patients with neurological dysfunction and patients with lung disease.

5. Pregnant women are not suitable for drinking tea. So it is suggested that you can drink some green tea in moderation, but not too much.

Extended data:

When drinking tea at night, put less tea and don't make the tea too strong. Advantages and disadvantages of drinking tea It is best to drink tea after meals, because drinking tea on an empty stomach will harm the body, especially for people who don't drink tea often, which will inhibit the secretion of gastric juice, hinder digestion, and even cause palpitations and headaches. Strong tea contains excessive tea polyphenols and various alkaloids, which has obvious stimulating effect and will affect the stomach, heart, kidney and endocrine system to a certain extent.

If people often drink a lot of tea, it will easily lead to severe dilution of gastric juice, which will lead to indigestion, abdominal distension, abdominal pain and other symptoms, and even lead to a series of gastrointestinal diseases for a long time. Drinking too much tea will hinder the body's absorption of iron, which will lead to iron deficiency anemia. Most tea leaves contain tannic acid, black tea contains about 5%, and green tea contains about 10%.

When people drink a lot of strong tea, tannic acid will be more fully combined with iron, which will bring obstacles and influence to the absorption of iron by human body. Drinking too much tea is easy to cause constipation. Tannic acid in tea can also react with protein in various foods, producing a protein tannic acid which is difficult for human body to digest, thus causing constipation. Excessive intake of strong tea can lead to high blood pressure and heart failure. Strong tea is rich in caffeine, which can raise blood pressure.

A large amount of strong tea enters the blood vessels, which will increase the burden on the heart and produce symptoms such as chest tightness and palpitation. Drinking too much tea will do some harm to the human body, but drinking tea in moderation is also good for people. Moderate drinking tea can reduce blood fat, lose weight and prevent cardiovascular and cerebrovascular diseases. Tea is rich in phenolic derivatives, aromatic substances, amino acids, vitamins and other substances. The interaction of these substances can promote the oxidation of human body fat, help human body digest and reduce fat and weight.