Benefits of drinking black tea 1, anti-inflammatory and sterilization: Polyphenols in black tea have anti-inflammatory effects, and experiments show that catechins can combine with single-celled bacteria to coagulate and precipitate protein, thereby inhibiting and eliminating pathogenic bacteria. Therefore, it is quite beneficial for patients with bacillary dysentery and food poisoning to drink black tea, and people often use strong tea to coat wounds, bedsores and Hong Kong feet.

2. Detoxification: According to experiments, the tea polyphenols in black tea can adsorb heavy metals and biological alkaloids, and precipitate and decompose them, which is a boon for modern people whose drinking water and food are polluted by industry.

3. Refreshing and relieving fatigue: According to medical experiments, caffeine in black tea stimulates the nerve center by stimulating the cerebral cortex, which promotes refreshing and concentration of thinking, thus making the thinking response more acute and enhancing memory; It also has an exciting effect on the vascular system and the heart, strengthens the heartbeat, thus speeding up blood circulation to facilitate metabolism, and at the same time promoting sweating and diuresis, thus accelerating the excretion of lactic acid (a substance that makes muscles feel tired) and other old and waste substances in the body in a two-pronged manner, and achieving the effect of eliminating fatigue.

4, promoting fluid production and clearing heat: Drinking black tea in summer can quench thirst and relieve summer heat, because polyphenols, sugars, amino acids, pectin, etc. in tea have chemical reactions with saliva, and stimulate saliva secretion, resulting in moist mouth and a cool feeling; At the same time, caffeine controls the body temperature center of the hypothalamus and regulates the body temperature. It also stimulates the kidney to promote the excretion of heat and dirt and maintain the physiological balance in the body. Besides, black tea is an excellent sports drink. Besides relieving summer heat, quenching thirst and replenishing water, if you drink it before exercising which requires physical strength and endurance (such as running a marathon), because caffeine in tea has a refreshing effect, it can also make the body burn fat to supply heat energy while retaining liver vinegar during exercise, so people have more endurance.

5. Diuretion: Under the combined action of caffeine and aromatic substances in black tea, the blood flow of the kidney is increased, the glomerular filtration rate is improved, the renal microvessels are expanded, and the renal tubules are inhibited from reabsorption of water, thus contributing to an increase in urine volume. This is conducive to eliminating lactic acid, uric acid (related to gout), excessive salt (related to hypertension), harmful substances, etc. in the body, and alleviating edema caused by heart disease or nephritis.

In addition, black tea also has the effects of preventing caries, invigorating stomach and intestine, helping digestion, delaying aging, lowering blood sugar, lowering blood pressure, lowering blood fat, resisting cancer and radiation.