10 benefits of drinking black tea in winter

　　Ten benefits of drinking black tea in winter

　　1. Refresh and relieve fatigue

　　It was discovered through medical experiments that the content in black tea coffee Alkali excites by stimulating the cerebral cortex nerve The central nervous system promotes refreshing and focused thinking, thereby sharpening thinking responses and enhancing memory; it also has an exciting effect on the vascular system and heart, strengthening the heartbeat, thus accelerating blood circulation to facilitate metabolism, and at the same time promoting sweating and diuresis. This two-pronged approach accelerates the excretion of lactic acid (a substance that makes muscles feel tired) and other waste substances in the body, achieving the effect of eliminating fatigue.

　　2. Produce fluid and clear away heat

　　Drinking black tea in summer can quench thirst and relieve heat because the polyphenols, sugars, amino acids, pectin, etc. in the tea react chemically with saliva and stimulate saliva secretion, causing the mouth to feel moist and cool. At the same time, caffeine controls the body temperature center of the hypothalamus to regulate body temperature. It also stimulates the kidneys to promote the excretion of heat and dirt and maintain physiological balance in the body.

　　3. Diuretic

　　Under the combined action of caffeine and aromatic substances in black tea, the blood flow of the kidneys is increased, the glomerular filtration rate is increased, the renal capillaries are expanded, and the reabsorption of water by the renal tubules is inhibited, thus promoting an increase in urine output. This will help eliminate lactic acid, uric acid (related to gout), excess salt (related to high blood pressure), harmful substances, etc. in the body, as well as alleviate edema caused by heart disease or nephritis.

　　4. Anti-inflammation and sterilization

　　The polyphenols in black tea have anti-inflammatory effects, and experiments have found that catechins can bind to single-cell bacteria to coagulate and precipitate proteins, thereby inhibiting and eliminating pathogenic bacteria. Therefore, it is very beneficial for patients with bacterial dysentery and food poisoning to drink black tea. People also often use strong tea to apply to wounds, bedsores and athlete's foot.

　　5. Detoxification

　　Experiments have shown that theophylline in black tea can absorb heavy metals and alkaloids, and precipitate and decompose them. This is good news for modern people whose drinking water and food are polluted by industry.