Introduction: People believe that tea contains ingredients that reduce fire, so when summer comes, they will hold a cup of tea and take a leisurely sip. The tea flows through the mouth and gastroesophageal tract, not only feeling refreshing, but also having a light aroma in the mouth. It not only relieves heat and heat, but also nourishes the body. Doctors suggest that drinking more tea in summer is good for the body, especially blood vessels.

my country’s tea history can be traced back to more than 5,000 years ago. Compared with the world’s tea culture, my country was the first country to cultivate tea and use it to protect the body. In ancient times, many traditional Chinese medicine doctors recommended that patients drink tea in the summer. They found that some ingredients in tea could help people relieve heat and fever, calm the mind, nourish the liver and lungs, and eliminate various uncomfortable inflammations. This habit It has been passed down to this day.

With the research on tea, they found that tea contains active ingredients that can prevent cardiovascular diseases, such as tea polyphenols, tea pigments, flavonoids, etc. These ingredients have a significant contribution in reducing the incidence of cardiovascular diseases.

If we want to know how tea can prevent cardiovascular disease, we must first know what ingredients are in tea. The details are as follows: protein accounts for 15%-20%, amino acids account for 1%-4%, theanine accounts for more than 50%, and carbohydrates account for 5%-7%. Catechins account for 12%-24% (the data are all from "The Efficacy and Mechanism of Tea in Preventing Cardiovascular Disease").

Among these ingredients, the most effective ingredient in preventing cardiovascular disease is polyphenols, because polyphenols can inhibit free radicals, eliminate free radicals, and regulate lipid peroxidation levels. Act as an antioxidant, thus preventing the occurrence of cardiovascular and cerebrovascular diseases.

Green tea has the highest catechin content among all tea varieties. Catechin is the main component of polyphenols. When people drink green tea, catechins can absorb fat in the human body, prevent lipid deposition, alleviate human endothelial dysfunction, prevent platelet aggregation, and enhance the human body's ability to resist oxidation, thereby achieving the effect of alleviating the human body's inflammatory response.

Green tea can alleviate the symptoms of cardiovascular disease, and black tea is also very effective. I don’t know if you have noticed that the color of tea comes in three levels: light green, bright yellow, and dark brown. Light green and yellow tea tastes sweeter, while dark brown tea tastes bitter.

Teas of different colors are dyed by two tea pigments, theaflavins and thearubigins, produced in tea leaves. Different techniques for processing tea leaves produce different polyphenols, especially the oxidation of epigallocatechin gallate, which forms theaflavins and thearubigins.

In black tea, the content of tea polyphenols is different from that of green tea. The substance it has a higher content of is theaflavins, which can inhibit the oxidative modification of low-density lipoprotein and vascular cell adhesion to the human body. Attachment: It reduces plasma endothelin levels, increases glutathione peroxidase activity, has good anti-coagulation and fibrinogen dissolution functions, and prevents the formation of atherosclerotic plaques in blood vessels.

Black tea and green tea are both good for the body. Forming a good tea drinking habit can help us reduce the incidence of cardiovascular diseases and is beneficial to human health. It doesn’t matter what kind of tea you drink in summer, as long as it’s tea you want to drink, that’s enough.

Some scholars have made observations on patients who drink green tea and black tea, and have concluded a rule that as they drink tea appropriately every day, the number of individuals with cardiovascular disease decreases. Drinking a cup of 100ml green tea every day reduces the incidence of myocardial infarction. Drinking 3 to 6 cups of black tea every day can significantly reduce the mortality rate from cardiovascular disease. Drinking more than 5 cups a day reduces the risk of stroke. Drinking more than 10 cups a day reduces the incidence of cardiovascular disease.

People who drink at least one cup of black tea every day have lower blood pressure and cholesterol levels than ordinary people.

People who drink more than eight cups of black tea a day have a higher incidence of ischemic heart disease than those who drink less than two cups of tea a day. The reason why this abnormality occurs is related to the habit of drinking tea.

Some people like to add milk or saccharin to tea to sweeten it, but this approach increases the incidence of ischemic heart disease. Moreover, these ingredients added to tea will affect the absorption of active ingredients in tea and increase fat intake, so this tells us not to add flavor-enhancing ingredients to tea indiscriminately.

The efficacy of tea is closely related to personal living habits and tea drinking habits. A correct and healthy way of drinking tea can allow the components of tea to protect human cardiovascular health. Wrong ways, such as adding saccharin or milk to tea, will harm human health. Here are three scientific ways to drink tea to keep you away from the heat in summer.

ⅠAvoid tea with too high concentration

Drinking tea with too high concentration will make people unconsciously excited, which will affect our cardiovascular system and nervous system. . If you are a patient with cardiovascular disease, you are likely to have a fast heartbeat and arrhythmia after drinking strong tea, which will aggravate the condition, so you should avoid it.

Ⅱ Drink alcohol instead of tea

Some people think that drinking tea after drinking can relieve hangover, but this is not the case. If you drink strong tea after drinking alcohol, it will promote the undecomposed acetaldehyde to enter the human kidneys prematurely, causing great irritation to the kidneys and affecting normal kidney function. Not only that, wine and tea both increase excitement, which can cause damage to the heart.

Ⅲ "Two no's" principle

Do not drink tea on an empty stomach. This will cause caffeine to be over-absorbed by our body, which may lead to uncomfortable symptoms of palpitation and frequent urination. Then don't drink tea within 30 minutes after a meal. Drinking tea may disrupt normal diet and absorption and digestion.

Conclusion: Tea is good for our body and can prevent and reduce cardiovascular diseases. But if we drink tea in an unhealthy way, it will be harmful to our body. Whether it is black tea or green tea, both are good for blood vessels. The key to what kind of tea to drink lies in what kind of taste can arouse your interest. Just choose with confidence.