Current location - Health Preservation Learning Network - Health preserving recipes - What is the importance of drinking tea for health? Under what circumstances is drinking tea unhealthy but harmful?
What is the importance of drinking tea for health? Under what circumstances is drinking tea unhealthy but harmful?
You may not pay much attention to the problem when drinking tea at ordinary times. Most people only know that drinking tea can refresh and moisten the intestines, but different teas have different tea taboos. Many people usually prefer to drink tea, and even use tea for health preservation, so we should pay more attention to it. What are the precautions for drinking tea for health? Under what circumstances is drinking tea unhealthy but harmful?

1, pay attention to drinking tea for health

1. Avoid drinking tea if you have a fever.

Caffeine in tea can not only raise the body temperature, but also reduce the efficacy.

2. Patients with liver disease should avoid drinking tea.

Most substances such as caffeine in tea are metabolized by the liver. If the liver is sick, drinking too much tea exceeds the metabolic capacity of the liver, which will damage the liver tissue.

3. neurasthenia, be careful with tea

Caffeine in tea has the effect of exciting nerves.

The role of the center, neurasthenia, drinking strong tea, especially in the afternoon and evening, will cause insomnia and aggravate the condition. During the day, you can drink tea once in the morning and once in the afternoon. You might as well drink scented tea in the morning, green tea in the afternoon and no tea at night. In this way, patients will be refreshed during the day, calm and comfortable at night, and can fall asleep early.

Pregnant women should avoid drinking tea.

Especially not suitable for drinking strong tea, which contains a lot of tea polyphenols and caffeine, which has many unfavorable factors for the growth of the fetus in the mother's womb. In order to make the fetus develop normally and avoid excessive stimulation of caffeine to the fetus, pregnant women should drink less or not drink tea.

5. Women should not drink strong tea during lactation.

Drinking strong tea during lactation, too much caffeine will enter the milk, and children will be indirectly excited after breastfeeding, which will easily lead to less sleep and more crying.

6. Patients with peptic ulcer should drink tea carefully.

Tea is a stimulator of gastric acid secretion. Drinking tea can increase the secretion of gastric acid and stimulate the ulcer surface. Drinking strong tea often will worsen the condition. But for mild patients, you can drink some light tea after taking the medicine for 2 hours. Adding sugar black tea and milk black tea is helpful to diminish inflammation and protect gastric mucosa, and also has certain curative effect on ulcer. Drinking tea can also block the synthesis of nitroso compounds in the body and prevent precancerous mutation.

7. Avoid drinking tea because of malnutrition.

Tea has the function of decomposing fat. People who are already malnourished will be more malnourished if they drink tea to decompose fat.

8. Be careful when you are drunk.

Tea has the function of exciting the nerve center, and drinking strong tea after drunkenness will increase the burden on the heart. Drinking tea will also accelerate diuresis, so that toxic aldehydes in alcohol will be discharged from the kidneys before decomposition, which is very irritating to the kidneys and harmful to health. Therefore, for people with heart disease or poor function, don't drink tea, especially don't drink a lot of strong tea; For healthy people, you can drink a small amount of strong tea. When you wake up, you can eat a lot of fruit or sip vinegar to speed up human metabolism and relieve drunkenness.

9. Take medicine with tea with caution

There are many kinds of drugs with different properties. Can you drink tea and take medicine? You can't generalize. Tannin and theophylline in tea can change chemically with some drugs. Therefore, when taking hypnotic sedative drugs, iron-containing blood-enriching drugs, enzyme preparation drugs, protein and other drugs, tea polyphenols are easy to react with iron and precipitate, so it is not appropriate to use tea to give drugs, so as not to affect the curative effect.

Some Chinese herbal medicines, such as Herba Ephedrae, Ramulus Uncariae cum Uncis, Rhizoma Coptidis, etc., should not be mixed with tea. It is generally believed that it is not advisable to drink tea within 2 hours after taking the medicine. When taking some vitamin drugs, tea has no effect on the efficacy, because tea polyphenols in tea can promote the accumulation and absorption of vitamin C in the human body. At the same time, tea itself contains a variety of vitamins. Tea itself also has the functions of excitement, diuresis, blood lipid reduction and blood sugar reduction, which can improve the efficacy of the human body and restore health. In addition, people often think that it is not appropriate to drink tea when taking tonic such as ginseng antler, which is also reasonable.

10. Anemia patients should avoid drinking tea.

Tannic acid in tea can combine with iron to form insoluble final compounds, so that the body can not get enough iron source, so anemia patients should not drink tea.

1 1. Patients with urinary calculi should avoid drinking tea.

Urinary calculi are usually calcium oxalate stones. Because tea contains oxalic acid, it will form stones with calcium excreted in urine. Patients with urinary calculi will get worse if they drink a lot of tea.

12. Avoid drinking tea on an empty stomach.

Drinking tea on an empty stomach will dilute gastric acid, inhibit the secretion of gastric juice, hinder digestion, and even cause palpitation, headache, stomach discomfort, dizziness, upset and other "drunken tea" phenomena, and affect the absorption of protein, but also cause gastric mucosal inflammation. If "tea drunkenness" occurs, it can be alleviated by taking candy or drinking some sugar water.

2. What are the benefits of drinking tea?

1. delay aging. Female friends love to drink tea, which is a very correct part of all maintenance. This is mainly because tea polyphenols have strong antioxidant capacity and physiological activity, belonging to human free radical scavengers, which can effectively delay aging.

2. Prevent diseases. We live in a polluted environment, so how to prevent diseases has become a topic of concern to us. Tea polyphenols can block the synthesis of carcinogens such as ammonium nitrite in the body, effectively improve resistance and prevent many diseases. It can also prevent cancer.

3. Inhibit cardiovascular diseases. Cardiovascular diseases do great harm to our health, but many friends don't know how to avoid them. So I suggest that you can choose tea. Tea polyphenols play an important role in human fat metabolism and can effectively inhibit the occurrence of diseases.