Black Tea is made from fully fermented (Fermentation degree greater than 80%) tea leaves, using new buds and leaves suitable for making this type of tea as raw materials. It undergoes typical processes such as rolling, fermentation, and drying. Black tea contains various vitamins, and its leaves and Infusion are red in color. It has the effects of invigorating the spirit, relieving fatigue, quenching thirst, cooling heat, and promoting diuresis.
The Benefits and Effects of Black Tea
1. Elimination of Fatigue
The caffeine contained in black tea stimulates the cerebral cortex and excites the central nervous system, thus having a refreshing and invigorating effect. It can also stimulate blood vessels and the heart, accelerating blood circulation, promoting metabolism, and facilitating the excretion of lactic acid (a substance that causes muscle fatigue), which helps to alleviate fatigue.
2. Prevention of Colds
The flavonoids in black tea have the ability to kill toxic bacteria in food and render the influenza virus non-infectious. In addition to preventing colds, gargling with black tea can be beneficial when suffering from a sore throat due to a cold.
3. Prevention of Blood Clots
The polyphenol antioxidants present in black tea exhibit clear anti-coagulant and fibrinolytic effects, which can prevent the formation of thrombi (blood clots).
4. Anti-inflammatory and Bacterial Killing
Catechins in black tea can bind with bacteria, causing their proteins to coagulate and precipitate, thereby inhibiting and eliminating pathogenic bacteria. Therefore, drinking black tea is beneficial for patients with bacterial dysentery and food poisoning; in folk medicine, it is also commonly applied topically for bedsores and athlete's foot.
5. Promotes Diuresis
Black tea contains caffeine and aromatic substances, which work together to increase renal blood flow, dilate renal microvessels, and enhance glomerular filtration rate. At the same time, it can inhibit the reabsorption of water by renal tubules, leading to an increase in urine volume. This is conducive to the excretion of substances such as lactic acid, Uric acid, salts, and other harmful substances from the body.
6. Heat Generation and Cold Resistance
Black tea has a warm and sweet nature, with the effect of generating heat and warming the abdomen. It can enhance the body's adaptability to cold, making it particularly suitable for consumption during winter. Moreover, it contains less tea polyphenols, which reduces the irritation to the spleen and stomach, and is beneficial for those with weak digestive systems.
7. Regulation of Blood Sugar
The thearubigins and theaflavins in black tea promote the production of insulin, aiding in the regulation of blood sugar stability and effectively preventing myocardial infarction.
8. Anti-aging
The theaflavins and thearubigins in black tea exhibit strong Antioxidant properties. Drinking black tea can effectively alleviate the damage caused by free radicals to the skin and cardiovascular system, combating aging.
9. Anti-cancer
Studies have shown that black tea can inhibit the formation of carcinogenic nitrosamines, with an inhibition rate of 65%. Regular consumption of black tea can reduce the risk of developing skin cancer.
10. Prevention of Osteoporosis
After brewing, 70% of the potassium in black tea dissolves in the tea liquor. Black tea also contains manganese. Potassium can prevent or reduce the loss of calcium in the body, while manganese is an essential element for bone structure. Thus, regular consumption of black tea can help prevent osteoporosis.
11. Prevention of Memory Decline
Within a certain range, the level of acetylcholine in the human body is positively correlated with memory. For example, patients with Alzheimer's disease typically have very low levels of acetylcholine in their brains. Drinking black tea can maintain acetylcholine levels in the brain and help prevent memory decline.