The efficacy and role of black tea 1. refreshing eliminate fatigue through medical experiments found that the caffeine in black tea to be excited by stimulating the nerve center of the cerebral cortex, contributed refreshing, thinking focus, and thus make thinking response even more sensitive, enhance memory; it also with the vascular system and heart stimulant, strengthen the heartbeat, thus speeding up the blood circulation to facilitate metabolism while promoting sweating and urination, thus two-pronged approach to accelerate the excretion of lactic acid (the feeling of physical fatigue of the muscles) and the other in vivo old waste material, to eliminate effects of fatigue. 2. The fluid in the summer heat can be refreshing thirst quencher drink tea because tea polyphenols, sugars, amino acids, pectin and saliva chemical reaction, and stimulate the secretion of saliva, leading to the mouth feel moist and produces cool sense; at the same time under the control of the hypothalamus of caffeine body Wenzhong Shu, regulate body temperature, it also stimulates the kidneys to promote excretion of heat and dirt, to maintain the body's physiological balance. 3. diuretic caffeine in black tea and aromatic substances combined effects of increased renal blood flow, glomerular filtration rate increase, expansion of the renal microvasculature and inhibit renal tubular reabsorption of water, thus contributed to increased urine output. So conducive to rid the body of lactic acid, uric acid (gout-related), too much salt (and hypertension), and other harmful substances, as well as ease of nephritis caused by heart disease or edema. The anti-inflammatory compounds in black tea polyphenols have anti-inflammatory effects, and then through experiments found that catechins can be combined with single-cell bacteria, protein coagulation precipitation, thereby suppress and eliminate pathogens. Therefore, in patients with bacillary dysentery and food poisoning is quite beneficial to drink tea, tea is also commonly painted folk wounds, bed sores and athlete's foot. 5. It is proved detoxification, black tea and more tea base can absorb heavy metals and alkaloids, and precipitation decomposition, which is water and food contaminated by industrial modern people, is nothing more than a blessing. 6. strong bones black tea polyphenols (green tea also have) inhibit the destruction of bone cells vitality substance. In order to combat a common female osteoporosis, it is recommended to take a small cup of black tea a day, the effect is obvious persist for several years. Such as with lemon black tea, strong bones, the effect is stronger in black tea can also be combined with a variety of fruits, can play a synergistic effect. 7. The anti-aging green tea and black tea antioxidants can completely destroy cancer cells in the propagation path of chemical substances. Black tea and green tea roughly equivalent efficacy, but black tea antioxidants than green tea is much more complicated, especially beneficial for the heart is. "US magazine reported that black anti-aging effect is stronger than garlic, broccoli and carrots. 8. Yang Stomach Huwei people did not eat when drinking green tea will feel stomach discomfort, which is important because the material contained in tea - tea polyphenols have convergence of the stomach has some stimulating effect, in the case of fasting irritating stronger. And tea is not the same. It is made of fermented baked. tea not only not Shang Wei, but can stomach. Regular consumption of sugar, tea with milk, can be anti-inflammatory, protect the gastric mucosa, for the treatment of ulcers also have some effect. 9. tea has anti-cancer effects of anticancer about saying very popular, researchers around the world have done a lot of this exploration, but is generally believed that anti-cancer effects of tea mainly in green areas, With the new progress. The study found that black tea with green tea, same as there is a strong anti-cancer effects. 10. vasodilation study found patients with heart disease to drink four cups of black tea a day, vasodilation degrees from 6% to 10% Ordinary people after stimulation, the relaxation of the 13% increase. The nutritional value of black tea