Drinking tea can be healthy! The study found that drinking tea often can improve blood lipids, how many times a week should I drink?

The 63-year-old Uncle Pan is a gout patient. A few years ago, he was diagnosed with obesity, high blood pressure, diabetes, chronic obstructive pulmonary disease and other diseases.

Last year, I was chatting with a group of friends, and I happened to learn that there is a popular remedy for gout on the Internet - "health tea". It is said that the tea is non-toxic and has no side effects.

After asking a friend for the link, Uncle Pan bought a box and drank a course of treatment. He felt that the frequency of gout attacks was indeed less, so every time he found joint pain, he rushed a cup of "health tea". However, during the review this year, the physical examination report showed that his serum creatinine was 278 μmol/L, which was much higher than the normal value.

After the doctor asked about Uncle Pan's recent diet, he asked Uncle Pan to stop drinking health tea quickly. Within a week, Uncle Pan also had fluid accumulation in his chest and signs of heart failure. In the end, Uncle Pan underwent dialysis three times, and the situation improved.

This net red health tea can be said to be "harm" to the uncle. Many people have the habit of drinking tea, so what are the benefits of drinking tea? Must be better than drinking water?

1. What happens to people who often drink tea?

It is often heard that drinking tea has positive effects on health, according to a research team from Tianjin Medical University, drinking tea every day may reduce the risk of stroke and dementia. More specifically, studies discuss the combined effects of drinking tea + coffee. The results found that coffee and tea, whether consumed alone or together, may reduce the risk of stroke and Alzheimer's , but drinking coffee and tea together was more effective in preventing disease than drinking coffee or tea alone.

In addition, drinking tea regularly will bring many benefits to the body:

First, it helps with antioxidants . Tea polyphenols in tea have powerful antioxidant effects, which help to remove excess free radicals in the body and ensure that normal cells are not damaged.

In addition, it can also diuretic relieve fatigue .

The caffeine in tea also has a positive effect on the human body. It can enhance the excitement process of the cerebral cortex, make people excited, enhance memory ability, and keep people clear-headed. At the same time, tea also stimulates the kidneys, promotes the excretion of urine from the body, and improves the filtration rate of the kidneys.

A review study published in the "Chinese Journal of Gerontology" pointed out that drinking tea can also regulate metabolic syndrome in the elderly population . "Metabolic syndrome" is a high risk factor for cardiovascular disease and stroke in the elderly, and it will promote disease progression and increase mortality. The tea polyphenols in tea can help to adjust the metabolism of the elderly.

2. Is it better to drink tea or drink water?

Water is an important nutrient for the human body, and people need to add an appropriate amount of water every day. Scientific research has also confirmed that a glass of warm water every morning can play a diuretic, help defecation, detoxification, prevent high blood pressure, arteriosclerosis and other effects.

So drinking tea is good, drinking water is also good. However , the two behaviors of "substituting tea for water" and "brewing half a cup of tea for a day" are not advisable.

Gu Zhongyi, director of the Beijing Dietitian Association, said that drinking and brewing a cup of tea repeatedly can easily lead to excessive intake of caffeine. Although caffeine is common, everyone has different tolerance levels. Some people may experience heart rate, breathing Acceleration, headache and other discomfort. In addition to causing discomfort, too much caffeine has health risks.

Some studies have found that excessive caffeine can lead to brain atrophy and dementia. Studies have analyzed that caffeine achieves a refreshing effect by preventing adenosine from binding to receptors, but this process may lead to the structure of some cells in the brain. change in capacity.

In addition, too much caffeine intake can easily cause blood pressure and blood sugar to rise, and it will also stimulate gastric acid secretion, aggravating gastric ulcer symptoms. For people with insufficient drinking water, caffeine will also increase dehydration and aggravate temporomandibular joint disorders.

Therefore, tea cannot replace water, so it is recommended to drink light tea every day, and it is best to choose highly fermented tea leaves, such as black tea, Pu'er, etc., the caffeine content will be relatively low. In addition , put a little less tea each time, you can pour it out after one or two brews, and you must also ensure normal drinking water .

3. How to drink tea to keep healthy?

Drinking too much tea will also have side effects on the human body, so how should we drink tea to achieve the effect of health preservation?

1. How often do you drink tea?

Data from the Kailuan study published in the Journal of the American Heart Association showed that those who drank tea more than or equal to 4 times a week had significant improvements in lowering total cholesterol and triglyceride levels. A study by Gu Dongfeng, an academician from Fuwai Hospital of the Chinese Academy of Medical Sciences, also confirmed that people who drink tea at least three times a week may live longer .

2. What kind of tea do you drink?

Academician Gu Dongfeng said that the main biologically active compounds of tea are polyphenols, and polyphenols cannot be stored in the human body. It is necessary to drink tea regularly to ensure the activity of polyphenols in the body. The most effective is green tea, followed by black tea, scented tea and so on.

3. Drinking tea "4 inappropriate"

When brewing tea, these things need to be paid attention to:

Do not brew green tea with boiling water: too hot water will destroy the nutrients in the tea leaves, and it is easy to precipitate too much tannic acid, making the tea leaves more bitter and astringent. Therefore, the best soaking water temperature is about 80 ℃.

It is not advisable to use a thermos cup to make tea: to make tea in a thermos cup, tea leaves are easily fermented under high temperature and constant temperature conditions, vitamins will also be destroyed, and a large amount of theophylline and tannin will be leached out. The brewed tea is not only nutritionally poor. High, but also make the tea tasteless.

It is not advisable to drink tea excessively: some components in tea will combine with iron, which hinders the body's absorption of iron, so it is not advisable to drink tea in large quantities.

Do not drink cold tea, flavored tea, or hot tea : Do not drink tea that is too cold, as it may change the flavor. Don't drink the brewed tea in a hurry, too hot water can easily irritate the esophageal mucosa and easily lead to esophageal lesions.

Drinking tea is a healthy way of life, but drinking tea is also stressful, and it is not recommended to replace water with tea.

References:

[1] "Research on over 100,000 people in China confirms that drinking tea can indeed prolong life! This tea is the best! 》. Health Times. 2020-01-18

[2] "Coffee + tea, the effect is better! Drinking 2-3 cups a day reduces the risk of stroke by 32% and the risk of dementia by 28%". Mays Medicine. 2022-07-30

[3] "My mother felt top-heavy and uncomfortable after "drinking tea", I blame these two bad habits of drinking tea! ". Nutritionist Gu Zhongyi. 2021-11-15

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