Efficacy and function of green tea
You should drink more green tea in spring and summer.
Besides time, drinking tea also pays attention to the season. Yang Li suggested that green tea is most suitable for drinking in spring and summer, while Xinyang Maojian tea and Biluochun tea are suitable for drinking in spring. Both kinds of green tea have hair growth effect, which can relieve spring sleepiness. Drinking green tea in summer can clear away heat and toxic materials and reduce blood fat. In addition, people with hot constitution should also drink more green tea, because green tea is cool. It should be noted that it is not advisable to drink green tea on an empty stomach. Its rich tea polyphenols have astringent effect, which will stimulate the stomach and intestines, and it will be stronger on an empty stomach.
Drinking green tea in spring can delay aging.
Tea polyphenols help to delay aging, have strong antioxidant and physiological activity, and are free radical scavengers in human body. According to the research of relevant departments, the effect of 1 mg tea polyphenols on eliminating excessive free radicals harmful to human body is equivalent to 9 micrograms of superoxide dismutase (SOD), which is much higher than other similar substances. Tea polyphenols can block lipid peroxidation and remove active enzymes. According to the test results of Tomoyo in Ota, Japan, it is confirmed that the anti-aging effect of tea polyphenols is 18 times stronger than that of vitamin E. Drink more green tea in spring, and drink more green tea or black tea in autumn and winter.
3. It is helpful to prevent cancer and treat radiation injury.
Tea polyphenols can block the synthesis of carcinogens such as ammonium nitrite in the body, which can directly kill cancer cells and improve the immunity of the body. According to relevant data, tea polyphenols (mainly catechins) in tea are beneficial to the prevention and adjuvant treatment of cancers such as gastric cancer and intestinal cancer. Tea polyphenols and their oxidation products have the ability to absorb the toxicity of radioactive substances strontium 90 and cobalt 60. According to the clinical trials of relevant medical departments, the treatment of mild radiation sickness caused by radiotherapy with tea extract can reach more than 90%. For cytopenia, the effective rate of tea extract is 865438 0.7%; It has a good therapeutic effect on leukopenia caused by radiation.
What misunderstandings do you need to avoid decisively when drinking green tea in spring?
1, the misunderstanding of drinking green tea in spring is to drink the first cup of tea.
Because green tea is more or less polluted by harmful substances such as pesticides during planting and processing, there will always be some residues on the surface of tea, so the first cup of tea should be discarded because of its filtering effect.
2. The misunderstanding of drinking green tea in spring is drinking green tea on an empty stomach.
Drinking green tea on an empty stomach can dilute gastric juice, reduce the digestive function of human body, increase the absorption rate of water, lead to a large number of bad components in tea entering the blood, and cause dizziness, palpitation, weakness of hands and feet and other symptoms.
The misunderstanding of drinking green tea in spring is that drinking tea after meals is the best.
Drinking tea immediately after meals can easily lead to complex reactions between tea polyphenols in tea and iron and protein in food, thus affecting the absorption of iron and protein by human body. Drinking tea on an empty stomach before meals will dilute gastric juice and affect its secretion, which is not conducive to food digestion. The correct way is to drink tea at least half an hour after meals, preferably 1 hour later.
4. The misunderstanding of drinking green tea in spring includes drinking new tea.
Because of its short storage time, new tea contains more unoxidized polyphenols, aldehydes and alcohols, which has a strong stimulating effect on human gastrointestinal mucosa and is easy to induce stomach diseases. Therefore, drink less new tea and avoid new tea that has been stored for less than half a month.
What are the correct brewing methods of green tea?
1, green tea brewing can choose upward method.
Suitable for high-grade famous green tea with compact appearance, that is, the temperature is 75? 85-degree hot water rushed into the cup.
2, green tea brewing can choose drop method.
Put tea leaves first and then pour hot water of about 85 degrees directly, which is suitable for ordinary green tea. Drinking green tea correctly can make it taste better and drink healthier. There is a certain emphasis on making tea, especially the water temperature.
3. When brewing green tea, the water temperature should be controlled at about 80℃ ~ 90℃
If green tea powder is brewed, it can be brewed with warm water at 40℃ ~ 60℃. The serving size is 2g of green tea powder with 450ml of boiled water. Don't drink the first cup of tea. Shake it with hot water and pour it out.
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