Black tea originated in China. The earliest black tea is called the Zhengshan race. Black tea belongs to fully fermented tea, and is made from the buds and leaves of tea trees as a raw material, and is typically refined through a typical process of withering, rolling, fermenting, and drying. Because of its dry tea color and brewing tea soup with red as the main tone, hence the name of black tea. So what do you know about the efficacy of drinking black tea?
1. Shengjin heat
Drinking black tea in the summer can quench thirst and quench summer heat. This is because polyphenols, sugars, amino acids, pectin, etc. in tea produce a chemical reaction with the saliva, which stimulates the secretion of saliva and nourishes the mouth. Caffeine controls the body temperature center of the hypothalamus, which regulates body temperature and stimulates the kidneys to promote heat discharge.
2. Help digestion
Black tea can go greasy, help gastrointestinal digestion, promote appetite, and strengthen heart function. When you feel bloating everyday, drinking more black tea can promote digestion. Big fish often make people indigestion, this time drinking black tea can eliminate greasy and contribute to good health.
3. Stomach
The tea polyphenol contained in the tea has astringent effect, has a certain stimulatory effect on the stomach, and is more irritating in an empty stomach, so sometimes an empty stomach will feel unwell. The black tea is fermented and baked, and the tea polyphenols undergo enzymatic oxidation reaction under the action of oxidase, and the content is reduced, and the irritation to the stomach is also reduced. Black tea not only does not hurt the stomach, but can stomach. The oxidation products of tea polyphenols in black tea can promote the digestion of the human body. Regular consumption of black tea with added sugar and milk can reduce inflammation, protect gastric mucosa, and have certain effects on the treatment of ulcers.
Diuretic
Drinking black tea often, together with caffeine and aromatic substances in black tea, helps increase blood flow to the kidneys. Improve glomerular filtration rate, expansion of renal microvessels, and inhibit renal tubular reabsorption of water, thus promoting increased urine output. This is beneficial to the elimination of excess lactic acid, uric acid, excessive salt, etc., while also alleviating edema caused by heart disease or nephritis.
5. Refreshing
Medical experiments have found that caffeine in black tea can stimulate the cerebral cortex to stimulate the nerve center and achieve a refreshing effect, which in turn makes the thinking response more acute. It also has stimulatory effects on the vascular system and the heart, which can strengthen the heart beat, thereby accelerating blood circulation for metabolism.
6. Anti-inflammatory sterilization
The polyphenol compounds in black tea have anti-inflammatory effects. It was found that catechins can bind to single-cell bacteria and coagulate and precipitate proteins, thereby inhibiting and eliminating pathogens. People with bacterial dysentery and food poisoning drink black tea is quite beneficial.
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