Nowadays, tea has become the most popular, popular and healthy green drink in the world. We can also see the importance of tea to people's daily life from "daily necessities sauce vinegar tea".
Especially in modern society, people's living standards are getting higher and higher, and their awareness of health care is gradually strengthened. Most people think that drinking tea can improve immunity and help to expel toxins and garbage from the body. Some even regard drinking tea as a panacea, which can cure diseases and prevent diseases.
First of all, we must admit that drinking tea does have certain benefits to human health, but tea is only a health drink after all, and it has no great therapeutic effect on diseases caused by human body, so don't use it as medicine when drinking tea.
0 1
What are the benefits of drinking tea in moderation to human body?
1, improve muscle endurance
Tea contains an antioxidant called catechin, which can increase the body's ability to burn fat, improve muscle endurance, help fight fatigue and increase the time of physical exercise.
Step 2 stay in shape
Caffeine in tea can promote the secretion of gastric juice, help digestion and enhance the body's ability to decompose fat. Studies have shown that drinking tea regularly can reduce waist circumference and body mass index, thus helping to prevent diabetes and cardiovascular and cerebrovascular diseases.
Step 3 resist ultraviolet rays
Tea polyphenols are water-soluble substances. Washing your face with tea can remove greasy face, astringe pores, disinfect and sterilize, resist skin aging, and help reduce the damage of ultraviolet rays in the sun to the skin. It is a natural sunscreen.
Step 4 improve memory
Tea polyphenols in tea can partially improve the brain, thus increasing memory and improving learning efficiency. Studies have confirmed that drinking tea can prevent and treat nervous system diseases, especially the cognitive impairment of the elderly. In addition, caffeine can also stimulate the central nervous system, with refreshing, beneficial and refreshing effects.
02
Is it better to drink green tea or black tea
With the further development of tea varieties, there are many kinds of tea on the market today, but for most people, green tea and black tea are the two kinds of tea they usually like to drink. Many people are usually curious, but how about drinking green tea? How about drinking black tea?
-The benefits of drinking green tea
1, delaying aging
Green tea contains a lot of catechins, which is a strong antioxidant, which can effectively remove free radicals produced in human body, prevent skin aging, prevent cell damage and prevent free radicals from harming human body, thus playing a certain role in delaying aging.
2. Prevent dental caries and remove bad breath.
Green tea contains fluorine, in which catechins can inhibit the action of cariogenic bacteria and reduce the occurrence of dental plaque and periodontitis. Tannic acid contained in tea has bactericidal effect, which can prevent food residues from breeding bacteria, so it can effectively prevent bad breath.
3, antibacterial
Studies have shown that catechins in green tea can inhibit some bacteria that cause human diseases without harming the proliferation of beneficial bacteria in the intestine, so green tea has the function of whole intestine.
-The benefits of drinking black tea
1, strong bones
Black tea is mild in nature, mellow in taste and rich in trace elements such as potassium, which can enhance the blood circulation of the heart and reduce the calcium consumed in the body. Moreover, black tea contains manganese, so drinking black tea often can strengthen bones.
2, diuresis
Under the joint action of caffeine and aromatic substances in black tea, renal blood flow increases, glomerular filtration rate increases, renal microvascular dilates, renal tubules are inhibited from reabsorption of water, so that urine volume increases, which is beneficial to excrete lactic acid, uric acid, excessive salt and harmful substances in the body and relieve edema caused by heart disease or nephritis.
3. Jinsheng Qingre
Drinking black tea in summer can quench thirst and relieve summer heat because polyphenols, sugars, amino acids and pectin in tea can stimulate saliva secretion and make the mouth feel moist and cool. At the same time, caffeine controls the temperature center of hypothalamus and regulates body temperature. It also stimulates the kidneys to promote the excretion of heat and dirt and maintain the physiological balance in the body.
03
Green tea or black tea, which tea is good for blood vessels?
In recent years, with the improvement of people's living standards, the diet structure has also undergone great changes, and more and more people have gradually developed very unhealthy eating habits. Long-term high-oil high-salt high-calorie diet will not only induce obesity, but also easily lead to vascular injury and induce various vascular diseases.
According to the paper published in the European Journal of Preventive Cardiology, drinking green tea for a long time is more conducive to preventing and reducing cardiovascular and cerebrovascular diseases. In the journal of Food Science and Nutrition, scientists in China also analyzed item 16, and finally showed that people who drink green tea regularly have a lower risk of breast cancer.
Animal experiments made by scientists show that catechins in tea can reduce total cholesterol, free cholesterol, low-density lipoprotein cholesterol and triglycerides in plasma, and at the same time increase high-density lipoprotein cholesterol. Human experiments show that it can inhibit platelet aggregation and reduce the incidence of arteriosclerosis.
In the west, green tea contains flavonol, which has antioxidant effect, can also prevent thrombosis and platelet aggregation, and reduce cardiovascular diseases.
To sum up, compared with black tea, green tea is more beneficial to people's blood vessels and can prevent cardiovascular and cerebrovascular diseases to a great extent, especially for people who already have cardiovascular and cerebrovascular diseases. Drinking green tea in moderation at ordinary times can also prevent the illness from getting worse and contribute to the recovery and improvement of the disease.
04
Reading Extension-Precautions for Drinking Tea
1, avoid drinking tea on an empty stomach.
Drinking tea on an empty stomach will dilute gastric acid, reduce digestive function, and the absorption rate of water is high, which is a bad component in tea. A lot of blood can cause dizziness, palpitation, weakness of hands and feet and other symptoms.
2, avoid drinking new tea
Fresh tea has a short storage time, and there are many unoxidized polyphenols, aldehydes and alcohols, which have a strong stimulating effect on human gastrointestinal mucosa and are easy to induce stomach diseases.
3. Avoid drinking tea after meals.
Tea contains a lot of tannic acid, which reacts with iron in food to produce new substances that are difficult to dissolve, which will cause ischemia and even anemia over time.