Drinking tea is not only a traditional food culture. At the same time, because tea contains a variety of antioxidants and antioxidant nutrients, it has a certain effect on the elimination of free radicals. Therefore, drinking tea can also help prevent old age and provide health care functions. Drinking three or two cups of tea a day can play an anti-aging role. 1, avoid drinking a lot of tea before and after meals
About 20 minutes before and after a meal, you should not drink tea. If you drink tea, it will dilute the gastric juice and affect the digestion of food. Because tea contains oxalic acid, oxalic acid reacts with iron and protein in the food and affects the absorption of iron and protein.
2 fever avoid drinking tea
Caffeine in tea can not only increase the body temperature, but also reduce the efficacy.
3. Liver patients avoid drinking tea
Most of the caffeine and other substances in tea are metabolized by the liver. If the liver is sick, excessive drinking of tea exceeds the metabolic capacity of the liver, which will damage the liver tissue.
4. Pregnant women avoid drinking tea, especially should not drink strong tea
Tea contains a lot of tea polyphenols, caffeine, etc., on the growth of the fetus in the mother's abdomen there are many unfavorable factors, in order to enable the normal development of the fetus's intelligence, to avoid excessive caffeine stimulation of the fetus, pregnant women should drink less or no tea.
5. Women should not drink tea during lactation
Drink tea during lactation, too much caffeine will enter the milk, the child will indirectly generate excitement after breast-feeding, easy to cause less sleep and more crying.
6. Peptic drinking tea
Tea is a stimulating agent for gastric acid secretion. Drinking tea can increase the secretion of gastric acid and increase the irritation of ulcers. Changyin tea can make the disease worse. However, for mild patients, you can drink some light tea 2 hours after taking the medicine. Adding sugar tea and milk tea help protect the inflammation and gastric mucosa, and it also has a certain effect on ulcers. Drinking tea can also block the synthesis of nitroso compounds in the body and prevent precancerous mutations.
7. Malnutrition bogey tea
Tea has the function of decomposing fat, and those who are malnourished will break down the fat and make the nutrition worse.
8. Drunken Shen Yin Tea
Tea has a nerve center, and drinking drunk tea will increase the burden on the heart.
Drinking tea will also accelerate the diuretic effect, so that toxic aldehydes in alcohol have not been decomposed to be discharged from the kidneys, and have greater irritation to the kidneys and endanger the health. Therefore, for people with poor heart or kidney function, do not drink tea, in particular, can not drink large amounts of strong tea; for healthy people, you can drink a small amount of strong tea, to wake up, you can eat a lot Fruits, or small mouth vinegar and other methods to speed up the body's metabolism, so that drunken ease.
9. Use tea with caution
There are many kinds of drugs and their properties are different. Whether they can use tea or not can not be generalized.
The tannins and theophylline in tea can undergo chemical changes with certain drugs. Therefore, when taking hypnotics, sedatives, etc., and taking iron-containing blood and enzyme preparations, and containing proteins and other drugs, tea polyphenols are easy to deal with. The role of iron produced precipitation, should not use tea to send drugs to prevent affect the efficacy.
Some Chinese herbal medicines such as ephedra, uncaria, and berberine should not be mixed with tea, and it is generally believed that drinking tea should not be allowed within 2 hours.
When taking certain vitamins, the 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 multiple vitamins, and tea itself is also excited. Diuretic, hypolipidemic, hypoglycemic and other effects, can improve the efficacy of the human body and restore health is also beneficial. In addition, when people often think that taking ginseng and other tonics, they should not drink tea, there is a certain truth.
10. Anemia patients avoid drinking tea
The tannic acid in tea can be combined with iron to form an insoluble final product, so that the body can not get enough source of iron, so anemia patients should not drink tea.
11. urinary calculus patients avoid drinking tea
Urinary calculi are usually calcium oxalate stones. Because tea contains oxalic acid, stones are formed as calcium is excreted in urine. If urinary calculi patients drink tea in large quantities, the condition will be aggravated.
12. Avoid fasting tea
Fasting tea will dilute stomach acid, but also inhibit the secretion of gastric juice, impede digestion, and even cause heart palpitations, headaches, stomach discomfort, vertigo, upset and other "tea drunk" phenomenon, and affect the absorption of protein, but also cause gastric mucositis . If "Tea drunk" occurs, it can be alleviated by containing candy or drinking some sugar water.
13. Neurasthenia Shen drinking tea
The caffeine in the tea has the function of exciting the nervous center, and the nervous breakdown drinking tea, especially in the afternoon and evening, can cause insomnia and aggravate the condition. You can drink tea in the morning and afternoon during the day and you may drink tea in the morning. Afternoon Drink green tea and do not drink tea at night. In this way, the patient will feel refreshed during the day and stay calm and comfortable at night, so he can fall asleep early.
14. Avoid drinking tea before going to bed
It is best not to drink tea within 2 hours before bedtime. Drinking tea will make the spirit excitement, affect sleep, and even insomnia, especially the newly-acquired green tea. After drinking, the nerves are easily excited and cause insomnia.
15. Avoid drinking overnight tea
Drinking tea to make a drink is good. When the tea is put for a long time, it will not only lose vitamins and other nutrients, but also will be susceptible to degeneration and drinking.
16. Avoid drinking tea
Because the modern tea is inevitably contaminated by pesticides, fertilizers, dust and other substances during the process of planting, processing, and packaging. The first tea is actually the water for washing tea. It should be poured out as soon as possible after the water is poured out. The tea that is soaked is the most hygienic tea.
17. Avoid drinking poor quality tea or bad tea
Tea is not easy to keep, easy to absorb moisture and mildew, and some people save for the love of tea, could not bear to discard the moldy tea. Deteriorating tea contains a lot of harmful substances and germs that cannot be consumed. If the tea leaves are left for too long after being soaked, the tea soup will deteriorate due to oxidation and microbes, and such tea cannot be used again.
18. Children should not drink strong tea
Because the concentration of tea is large, the content of tea polyphenols is too much, easy to interact with iron in food, is not conducive to the absorption of iron, easily lead to iron deficiency anemia in children. Children can drink some light tea (one-third of tea concentration for adults). Preschool children can drink some crude tea because of the low content of tea polyphenols in crude tea.
19. People with coronary heart disease drink tea cautiously
For people with coronary heart disease who have too fast heart rate, premature beats or atrial fibrillation, caffeine and theophylline in the tea are all stimulants that can enhance the heart's function. A large number of drinking strong tea will increase the heart rate, often leading to its onset or aggravation of the disease. Therefore, this type of person can only drink some light tea; on the contrary, patients with a heart rate generally below 60 beats/min should drink more tea, which is not only harmless, but can increase heart rate, and can be used in combination with drug therapy.
20. The elderly should not drink tea
The so-called raw tea refers to dried green tea that has been directly dried without being rubbed. The tea is green and green in shape, and contains almost the same compounds as the fresh leaves. The low-boiling alditol compounds have little conversion and volatilization, and the fragrance has a serious green gas. The elderly drink this kind of green tea, and it is very irritating to the gastric mucosa. After drinking, it is easy to produce stomachache; young people will also feel stomach discomfort after drinking, which is commonly referred to as “squeezing the stomachâ€. Mistakes to buy this kind of raw tea, it is best not to direct soaking, can be placed in a non-greasy iron pot, slowly fry with slow fire, roast green gas, to be produced after the mild chestnut after drinking.
21. Hypertensive patients should not drink strong tea
Head tea is less than 50 ml boiling water per gram of "strong tea." If hypertensive patients drink too much concentrated tea, caffeine's stimulant effect will lead to high blood pressure, which is not conducive to health.
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