As an authentic Cantonese, it is indispensable to make tea during holidays. Even if it is not a holiday, many people will drink tea in daily life. There is no time limit. It is possible to make a pot of tea in the morning, afternoon and evening.
Cantonese people love to drink tea so much, is there any magical effect of drinking tea?
Drinking tea can lower blood pressure and prevent cancer?
Lao Zhang has been suffering from high blood pressure for several years. Once I heard from neighbors in the community that drinking tea can lower blood pressure. Since then, Lao Zhang has made a pot of tea every day. However, after drinking for a while, Lao Zhang felt that the effect of lowering blood pressure was not great.
"Drinking tea can lower blood pressure." I don't know since when the saying that drinking tea can lower blood pressure spread, and many hypertensive patients have become senior tea friends. But, can tea really lower blood pressure?
Scientists have verified and found that in some animal experiments and cell experiments, the tea polyphenol contained in tea does indeed lower blood pressure. Subsequently, the scientists conducted human studies, but found that one hour after drinking the tea, the blood pressure of the subjects suddenly increased due to the caffeine contained in the tea.
Some scientists also believe that the blood pressure of some hypertensive patients drops after drinking tea. It is water that works, not tea. Therefore, judging from the current research, drinking tea does not have a significant effect on lowering blood pressure. On the contrary, drinking too strong tea can suddenly increase blood pressure.
In addition, there are also rumors that drinking tea can prevent cancer. In some animal experiments, the polyphenols in tea have antioxidant activity, which can inhibit the occurrence of tumors in liver, lung, kidney and other parts.
However, 's current clinical studies have not been able to determine the exact mechanism of tea anti-cancer, and there is no evidence that drinking tea can reduce the incidence and mortality of cancer . Although drinking tea does have certain benefits to the human body, whether drinking tea can prevent cancer and fight cancer has yet to be determined.
The tea polyphenols in tea have strong antioxidant and physiological activity, caffeine can stimulate the central nervous system of the human body, vitamin B1 and vitamin C can help digestion, etc. Therefore, the real benefits of drinking tea are 's anti-oxidation, prevention of radiation damage, refreshing, diuresis and fatigue, and promoting digestion strong20strong etc.
People who have been exposed to ionizing radiation for a long time, such as computer workers, obese and overweight people, greasy people, mining workers, and hosts, or who use their brain power, and have poor eating habits, can drink tea appropriately for good health.
Who can not drink tea?
Drinking tea has many benefits, and not everyone can drink it. For patients with gastric ulcer, drinking tea will stimulate the gastric mucosa, promote gastric acid secretion, and aggravate the symptoms of gastric ulcer.
For patients with insomnia and neurasthenia , after drinking tea, will cause nerve excitement , aggravate insomnia , and affect rest. For people with arrhythmia , drinking tea will speed up the heartbeat, leading to dizziness, palpitations, and risk of cardiovascular disease.
In addition, tea should not be consumed under these circumstances: One is not to drink tea after being drunk; the other is not to drink tea on an empty stomach; the third is not to drink tea while taking medicine .
Some people are used to drinking a cup of tea to hangover after drinking. However, can tea really hangover? Experts say that the main cause of hangover is enzymes. Drinking tea will not help but may cause kidney damage.
theophylline in tea can quickly produce diuresis through the kidneys,Make acetaldehyde that has not yet been oxidized enter the kidney prematurely, causing toxicity and adversely affecting kidney function.
To put it simply, drinking tea to hangover is just to relieve the discomfort by increasing the pressure on the kidneys, but not to really relieve the harm of alcohol to the body.
Drinking tea on an empty stomach will cause the intestines to absorb too much caffeine , causing dizziness, palpitation, fatigue and other " tea drunk " phenomena.
It is not advisable to drink tea when taking medicine, otherwise it will affect the efficacy of the medicine, especially when is taking sedatives, sleep aids, antiarrhythmic drugs and other medicines, drinking tea may reduce the analgesic effect of these medicines.
How to drink tea healthily?
The tea culture is extensive and profound, so you can't just drink tea casually. Therefore, drinking tea like this is healthier:
1. Drinking too much tea can cause excitement, restlessness, and insomnia;
2. Drinking tea too thick, too thick will cause tachycardia and arrhythmia;
3. Do not drink tea immediately after meals, which will cause indigestion;
4. Do not drink overnight tea, which is easy to be contaminated;
5. Drink scented tea in spring to promote the growth of yang;
6. Drink in summer Green tea , clearing away heat, relieving heat, and detoxifying;
7. Drinking green tea in autumn makes people refreshing;
8. Drinking black tea in winter has a certain nourishing function;
There are many specialties in drinking tea, and it’s right. , It can exert the maximum effect of tea; drinking it wrong may cause harm to the body. There are also many rumors about the benefits of drinking tea. We must look at it with a scientific perspective, and we must not blindly listen to it. #谣零零计划# #健康卫者# #39健康超能团#
Reference materials:
[1] "Eight Principles for Elderly People to Pay Attention to Drinking Tea". Zhanjiang Daily. 2014-12-02
[2] "Drinking tea is good for 4 times to drink tea and cause kidney disease". Jiangnan Evening News. 2014-12-08
[3] "These three types of people drink less tea" .People’s Daily Online.2018-01-10
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