Simply put, most people drink tea correctly, which is good for their health. Drinking more water is also good for your health. The details can be seen as follows. ...

Drinking tea is not only a traditional food culture, but also has a certain effect on scavenging free radicals because tea contains a variety of antioxidant substances and nutrients. Therefore, drinking tea also helps to prevent aging and has a health care effect. Drinking three or two cups of tea every day can prevent aging. Tea contains many vitamins and amino acids. Drinking tea also has certain effects of clearing oil and relieving boredom, enhancing nerve excitement and promoting digestion and diuresis.

But the more you drink, the better, and not everyone is suitable for drinking tea. Generally speaking, 65438+ 0-2 times a day, 2-3 grams each time is more appropriate.

[Edit this paragraph] (1) Who is not suitable for drinking tea?

1) iron deficiency anemia:

Tannic acid in tea will affect the body's absorption of iron and aggravate anemia. Caffeine in tea can make people excited, increase basal metabolism and aggravate insomnia.

2) neurasthenia:

3) Patients with dynamic gastric ulcer:

Caffeine stimulates the secretion of gastric juice, aggravates the condition and affects the healing of ulcer.

4) Urinary calculi:

Oxalic acid in tea will lead to an increase in stones.

5) Patients with poor liver function:

Caffeine is mostly metabolized by the liver, and drinking tea for people with poor liver function will increase the burden on the liver.

6) constipation:

Tanning has astringent effect, which can weaken intestinal peristalsis and aggravate constipation.

7) Lactating women:

Caffeine can enter the baby's body through milk, which will cause intestinal spasm and anemia and affect the child's sleep.

8) Patients with heart disease:

Drinking too much tea will accelerate the heart rate, and some may have arrhythmia.

9) Pregnant women:

Drinking too much tea will make the baby thin.

10) Drunk:

Alcohol has a great stimulus to the cardiovascular system, and caffeine can make the heart beat faster. The combination of the two is very dangerous for people with poor heart function.

[Edit this paragraph] (2) Pay attention to drinking tea

1. Avoid drinking tea on an empty stomach. Tea into the heart will cool the spleen and stomach.

2. Avoid drinking hot tea, preferably below 56℃.

3. Avoid drinking Leng Cha, Leng Cha is cold and stagnates, accumulating phlegm.

4. Avoid brewing for too long to prevent oxidation and bacterial pollution.

5. Avoid repeated brewing, harmful trace elements in tea will bubble out at last.

6. avoid drinking before meals, tea will dilute stomach acid.

7. Avoid drinking tea immediately after meals. Tannic acid in tea will affect digestion.

8. Avoid taking medicine with tea. Tannic acid in tea will affect the efficacy.

9. Avoid drinking overnight tea, it will deteriorate after a long time.

10. Don't drink tea after drinking. Drinking tea after drinking will hurt the kidneys.

1 1. Avoid drinking strong tea. Caffeine is addictive and toxic.

12. The inedible teas are: burnt tea, moldy tea, and cross-flavored tea.

[Edit this paragraph] (3) Pay attention to drinking tea

First, pay attention to the difference between the four seasons, that is, drink scented tea in spring, green tea in summer, green tea in autumn and black tea in winter. The reason is that people who drink scented tea in spring can emit the cold evil accumulated in the human body all winter, and the rich fragrance can promote the occurrence of human yang. In summer, drinking green tea is better. Green tea tastes bitter and cold, which can clear away heat and relieve summer heat, detoxify and quench thirst, and strengthen the heart. In autumn, drinking green tea is better. This kind of tea is neither too hot nor too cold, which can eliminate residual heat in the body and restore body fluid. Drinking black tea in winter is ideal. Black tea is sweet and warm, rich in protein, which can help digestion, tonify the body and strengthen the body.

Second, pay attention to the amount of tea, drink 2 ~ 6 grams of tea every day. Although tea contains a variety of vitamins and amino acids, drinking tea can relieve boredom, enhance nerve excitement and promote digestion and diuresis, but not the more you drink, the better, and not everyone is suitable for drinking tea. Generally speaking, 65438+ 0-2 times a day, 2-3 grams each time, is more appropriate. It is not suitable for patients with neurasthenia, insomnia, hyperthyroidism, tuberculosis, heart disease, gastropathy and intestinal ulcer, nor for lactation period, pregnant women and infants.

Third, don't drink too strong tea. Strong tea will make the "excitability" of human body too high, which will have adverse effects on cardiovascular system and nervous system. Patients with cardiovascular diseases may have tachycardia or even arrhythmia after drinking strong tea, which leads to repeated illness.

Fourth, don't drink tea before going to bed. This is more important for early tea drinkers. After drinking tea before going to bed, it becomes very difficult for many people to fall asleep, which even seriously affects their mental state the next day. People with neurasthenia or insomnia should pay special attention.

5. Don't drink a lot of tea while eating. Drinking a small amount of tea before or during meals is not a big problem, but if you drink a lot of tea or drink too much tea, it will affect the absorption of many macro elements (such as calcium) and trace elements (such as iron and zinc). Pay special attention not to drink tea at the same time when drinking milk or other dairy products. Theophylline and tannic acid in tea will combine with calcium in dairy products to form water-insoluble calcium salts, which will be excreted, greatly reducing the nutritional value of dairy products.

Sixth, it is not advisable to drink tea after drinking. After drinking, the alcohol in the wine enters the blood through the gastrointestinal tract and is converted into acetaldehyde in the liver, which is then converted into acetic acid, which is then decomposed into carbon dioxide and water to be discharged. After drinking tea, theophylline in tea can quickly diuretic the kidney, thus promoting the undecomposed acetaldehyde to enter the kidney prematurely. Acetaldehyde has a great stimulating effect on the kidney, so it will affect the renal function. People who often drink strong tea after drinking are prone to kidney disease. Not only that, the ethanol in wine is very irritating to the cardiovascular system, and tea also has the effect of exciting the heart. The combination of the two enhances the stimulation to the heart, so drinking tea for heart patients is more harmful.

Seven, tea is not as fresh as possible. In terms of nutrition, the freshest tea is not necessarily the best, because the so-called new tea refers to the tea that has been picked for less than one month. Because these tea leaves have not been placed for a period of time, some substances that have adverse effects on the body, such as polyphenols, alcohols, aldehydes, etc., have not been completely oxidized. If you drink new tea for a long time, you may have discomfort such as diarrhea and bloating. Too fresh tea is even worse for patients, such as some people with gastric acid deficiency or elderly patients with chronic gastric ulcer, which is even more unsuitable for drinking new tea. New tea will stimulate their gastric mucosa, cause gastrointestinal discomfort and even aggravate their condition.

(d) Women should not drink tea.

Although tea has a good health care function, it can't be drunk every time, especially female friends should pay special attention to avoid getting worse! The periods when female friends are not suitable for drinking tea are divided into:

1. During menstruation

Female friends consume a lot of iron during menstruation, so female friends should supplement vegetables and fruits rich in iron, such as spinach, grapes and apples. Tea contains as much as 50% tannic acid, which will hinder the absorption of iron by our intestinal mucosa and greatly reduce the absorption of iron, so it is easy to combine with chyme or blood-enriching iron in the intestine to produce precipitation.

2. During pregnancy

Generally, the caffeine concentration in strong tea is as high as 10%, which will increase the number and frequency of urination and heartbeat of pregnant women, increase the load on their hearts and kidneys, and more easily lead to pregnancy poisoning, so it is best for pregnant women not to drink tea.

3. During breastfeeding

Because if you drink a lot of tea during this period, the high concentration of tannic acid contained in tea will be absorbed by the mucosa, which will affect the blood circulation of the breast, and then inhibit the secretion of milk, resulting in insufficient milk secretion. In addition, caffeine in tea will penetrate into milk, indirectly affecting the baby, which is not good for the baby's health.

4. menopause

In addition to dizziness and fatigue, sometimes there are phenomena such as accelerated heartbeat, bad temper and poor sleep quality. If you drink too much tea, these symptoms will get worse. Therefore, if people who like drinking tea are at these special stages, it is best to stop, so as not to ruin their health!

[Edit this paragraph], extended meaning, metaphor

Because he was suspected of committing a crime (such as leaking state secrets), he was taken to the record by law enforcement departments and was dubbed as "someone invited me to tea"

It usually appears in obscure online articles.

[Edit this paragraph] Four misunderstandings about drinking tea are harmful to health.

According to research, tea contains more than 600 chemical components, five of which are very beneficial nutrients to human body. However, in daily life, people have many misunderstandings about tea, which may bring hidden dangers to health.

Myth 1: Strong tea "sobers up". Some people think that drinking strong tea can "sober up", which is a misunderstanding. Because people drink alcohol, the alcohol in the wine enters the blood through the gastrointestinal tract, first converted into acetaldehyde in the liver, then converted into acetic acid, then decomposed into carbon dioxide and water, and excreted through the kidney. However, after drinking strong tea, caffeine in tea can quickly play a diuretic role, thus promoting acetaldehyde (a substance that has a great stimulating effect on the kidney) to enter the kidney prematurely and damage the kidney.

Myth 2: tasting new tea is "refreshing". New tea refers to tea that has been picked for less than a month. This kind of tea has good shape, color and taste, and it is really a pleasure to drink. However, due to the short storage time of tea, there are many polyphenols, alcohols and aldehydes. If you drink new tea for a long time, you may have abdominal pain and bloating. At the same time, new tea also contains highly active tannic acid and caffeine. Excessive drinking of new tea will make the nervous system highly excited, and it is prone to "tea drunkenness" such as limb weakness, cold sweat and drowsiness.

Myth 3: Drinking tea will raise blood pressure. Tea has the functions of anticoagulation, promoting dissolution, inhibiting platelet aggregation, regulating blood lipid, raising high-density lipoprotein in blood and improving the ratio of cholesterol to phospholipid in blood, and can prevent lipid lumps such as cholesterol from depositing on the blood vessel wall, thus preventing coronary artery from narrowing. In particular, tea contains catechins, which can reduce the cholesterol content and blood lipid in the human body, thus lowering blood pressure. Therefore, drinking tea can prevent and treat cardiovascular diseases.

Myth 4: "Tea bags cure all diseases". Some people think that tea is not only a safe drink, but also a good medicine for treating diseases. As we all know, for some patients, it is not advisable to drink tea, especially strong tea. Caffeine in strong tea can make people excited, insomnia and increase metabolic rate, which is not conducive to rest; It can also accelerate the heartbeat of patients with hypertension, coronary heart disease and nephropathy. Even arrhythmia and frequent urination will increase the burden on the heart and kidneys. In addition, caffeine can also stimulate gastrointestinal secretion, which is not conducive to the healing of ulcer disease; Tannin in tea has astringent effect, which can slow down intestinal peristalsis and aggravate constipation.