It is said that drinking tea is good for the heart, but which kind of tea is better for the heart?
Tea can be said to be the world's oldest drink, now popular all over the world, some people like to drink green tea, some people like to drink black tea, black tea and green tea are the two most consumed teas in the world, which of them is better for the heart? Maybe a study can tell you the answer.
<h1 class="pgc-h-arrow-right" data-track="43" >. Which is better, black tea or green tea? </h1>
In fact, there is a research team in China that has done a study on the relationship between drinking tea and the heart, and researchers have divided 100902 participants with no history of stroke, heart disease and cancer into two groups: habitual tea drinking and never or without tea habits, for up to 7.3 years of follow-up time.
The results found that compared with participants who never or rarely drank tea, the group with tea drinking habits not only suffered from stroke or coronary heart disease at an average of 1.41 years later, but also had a 20% lower risk of stroke or heart disease, but more importantly, compared with participants who never or rarely drank tea, the risk of dying from stroke or heart disease was 22% lower, which also proved that drinking tea was indeed good for the heart.
It is worth mentioning that Dr. Wang Xinyan of the Chinese Academy of Medical Sciences, the leader of the study, said that green tea and long-term tea drinking are beneficial to health, and there is no obvious association between black tea, because green tea contains a large number of polyphenols that can prevent cardiovascular disease.
Of course, the study still has limitations, because the study only proves the correlation between drinking tea and health, and there is no more direct evidence, in addition, most of the researchers are accustomed to drinking green tea, and the contrast with black tea is weak.
However, it is certain that drinking more green tea is indeed beneficial.
<h1 class="pgc-h-arrow-right" data-track="42" > second, what is good about green tea? </h1>
The goodness of green tea is mainly manifested in the following four points.
1. Prevent skin itching in winter
"Health Times" pointed out that drinking tea can prevent itching in winter because tea contains manganese, but the manganese content in green tea and black tea is different. For example, the West Lake Longjing tea in green tea has a manganese content of 1.40 mg per gram of dried tea leaves, while the manganese content of Keemun black tea in black tea is only 0.60 mg per gram of dry tea leaves.
Manganese element can participate in a variety of enzymatic reactions in the body, while enhancing the activity of galactose transferase and polysaccharide polymerase, promoting the metabolism of proteins and certain vitamins, not only can reduce the skin by adverse stimulation, but also conducive to the normal progress of sebum metabolism, the skin plays a protective role, preventing winter skin itching.
2. Help the skin fight oxidation
An article in the Chinese Journal of Chinese Materia Medica pointed out that green tea is rich in tea polyphenols, and tea polyphenols have antioxidant effects, so drinking green tea often may help the skin fight oxidation to a certain extent and prevent skin aging.
However, no matter how good green tea is, it is not suitable for drinking at any time.
<h1 class="pgc-h-arrow-right" data-track="21" > third, although green tea is good, these several cases are not recommended to drink</h1>
1. After autumn
As we all know, After the autumn in China, it will turn cold, and the green tea tastes cold and bitter, so it is not appropriate to drink green tea after the autumn. Green tea is slightly sweet, cold and hot, not only can moisten the throat, but also remove the accumulated heat, the most suitable for autumn drinking. It is worth mentioning that green tea is also oolong tea.
2, do not drink on an empty stomach
Xu Hui of the Nutrition Department of the Sixth People's Hospital Affiliated to Shanghai Jiao Tong University reminded that do not drink tea on an empty stomach, because the tannins and polyphenols contained in tea will stimulate the stomach and intestines, resulting in symptoms such as stomach discomfort, and in severe cases, dizziness, palpitation, weakness of hands and feet and other phenomena will occur.
3. Don't drink after drinking
Theophylline in tea has a diuretic effect, drinking tea after drinking, the diuretic effect of theophylline will introduce the ethanol that has not been completely decomposed into the kidneys, and ethanol will cause great stimulation to the kidneys, that is to say, drinking tea after drinking alcohol will damage kidney function.
4, stomach is not good, do not drink
Green tea belongs to the unfermented tea, containing a large number of tea polyphenols and caffeine, people with a bad stomach drink green tea is easy to cause gastrointestinal discomfort, aggravating stomach diseases.
It can be seen that although green tea is good, it cannot be drunk casually, otherwise it will "pour oil on the fire" and backfire. #Health Star Program##Health Science Contest ##谣零零计划 #
Resources:
[1] "China's 500,000 people study results: often drink green tea can prevent diabetes!" The benefits of green tea are many more! 》. Health Times.2021-05-17
[2] "Once the winter skin is dry and itchy, drink 6 grams of green tea every day to try, the benefits are unexpected!" 》. Health Times.2019-01-02
[3] "Study found that drinking green tea may prevent and delay Alzheimer's disease". Guangming Network.2021-08-31
[4] "Don't drink green tea again in autumn!" Tea sex list, the most suitable for autumn is this". Zhuhai Market Supervision.2021-09-30
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