The Main Effect Of Black Tea

Black tea can help gastrointestinal digestion, promote appetite, diuresis, eliminate edema, and strengthen heart function. "The rich flavonoids in black tea can eliminate free radicals, have anti-acidification effect, and reduce the incidence of myocardial infarction. Traditional Chinese medicine believes that tea is also divided into cold and heat. For example, green tea is bitter and cold, suitable for drinking in summer (depending on individual physique). For relieving summer heat; black tea and Pu-erh tea are warmer and more suitable for drinking in winter. As for oolong tea and Tieguanyin, they are more neutral.

Black tea can help blood sugar regulation, but there is still no definite conclusion. In winter, the stomach is easy to feel uncomfortable, and people who eat too much iced melon and fruit feel uncomfortable, they can add brown sugar and ginger slices to black tea, drink it slowly while it is warm, it has the effect of nourishing the stomach, and the body will be more comfortable, but it is not recommended to drink iced black tea .

1. Refreshing

The caffeine in black tea excites the nerve center by stimulating the cerebral cortex, promotes refreshment and concentration of thinking, which in turn makes the thinking reaction sharper and memory enhanced; it also has an excitatory effect on the vascular system and the heart, strengthens the heartbeat, and accelerates the blood flow. Circulation facilitates metabolism, and at the same time promotes sweating and diuresis, thereby accelerating the excretion of lactic acid (a substance that makes muscles feel tired) and other old waste substances in the body to achieve the effect of eliminating fatigue.

2. Promotes fluid and clears heat

Drinking black tea in summer can quench thirst and relieve heat, because the polyphenols, sugars, amino acids, pectin, etc. in the tea have a chemical reaction with the saliva, and stimulate the secretion of saliva, causing the mouth to feel moist and cool; at the same time, caffeine controls The body temperature center of the hypothalamus regulates body temperature, it also stimulates the kidneys to promote the excretion of heat and dirt, and maintain the 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 microvessels are expanded, and the reabsorption of water by the renal tubules is inhibited, thus contributing to the increase of urine output. This is beneficial to the elimination of lactic acid, uric acid (related to gout), excessive salt (related to high blood pressure), harmful substances, etc. in the body, as well as to ease the edema caused by heart disease or nephritis.

4. Anti-inflammatory and sterilization

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

5. Detoxification

Theophylline in black tea can adsorb heavy metals and alkaloids, and precipitate and decompose, which is a good news for modern people whose drinking water and food are polluted by industry.

6. Strong Bones

On May 13, 2002, the American Medical Association published a survey of 497 men and 540 women for more than 10 years. It pointed out that people who drink black tea have strong bones, and the polyphenols in black tea (also found in green tea) have the ability to inhibit the destruction of bone cell substances. . In order to prevent and treat common osteoporosis in women, it is recommended to take a small cup of black tea every day for several years. For example, adding lemon to black tea can strengthen bones and have a stronger effect. Various fruits can also be added to black tea, which can play a synergistic effect.

7. Anti-aging

Over the past 5 years, the U.S. government has funded more than 150 studies on green and black teas and their chemical constituents, which have shown that the antioxidants in green and black tea can completely disrupt the pathways for chemicals in cancer cells. Murray Mittelman, MD, director of cardiovascular epidemiology at Beth Israel Deaconess Medical Center in Boston, said: "Black tea has roughly the same efficacy as green tea, but black tea has more complex antioxidants than green tea, especially for the heart. "American magazine reported that the anti-aging effect of black tea is stronger than that of garlic, broccoli and carrots.

8. Nourishes and protects the stomach

When people drink green tea without a meal, they will feel uncomfortable in the stomach. This is because the important substances contained in tea, tea polyphenols, have astringent properties and have a certain stimulating effect on the stomach. powerful. And black tea is different. It is fermented and baked. Black tea not only does not hurt the stomach, but can nourish the stomach. Regular consumption of black tea with sugar and milk can reduce inflammation, protect the gastric mucosa, and also have a certain effect on the treatment of ulcers.

9. Dilate blood vessels

A study in the American medical community is related to black tea. The study found that heart patients who drink 4 cups of black tea a day can increase vasodilation from 6% to 10%. Ordinary people after stimulation, the relaxation rate will increase by 13%.