Black tea can help digestion, stimulate appetite, induce diuresis, eliminate edema and strengthen heart function. Disease prevention: black tea has strong antibacterial ability. Gargling with black tea can prevent colds caused by viral diseases, prevent tooth decay and food poisoning, and reduce blood sugar and hypertension. American studies have found that gargling with black tea can prevent tooth decay * help digestion * eliminate edema * lower blood sugar and high blood pressure * eliminate bad breath * and prevent tooth decay. Drinking black tea has many benefits, such as improving blood vessel function, helping health and contacting Fang Zhen. Drinking black tea helps to prevent fatal diseases, such as cardiovascular disease, stroke and cancer. This may not be news, but a recent study finally found that drinking black tea can improve the vascular function of the human body. Black tea is a very common drink all over the world. Studies have also found that drinking black tea can help alleviate the situation of coronary artery disease and reduce the chances of stroke and some cancers. But until recently, a new study discovered how black tea plays a role in our bodies. The study followed 50 patients with heart disease. They drank four cups of black tea and boiled water every day for a month. The results show that the vascular function is obviously improved, which is closely related to endothelial cells that control blood flow and prevent thrombosis. However, doctors also pointed out that this does not mean that black tea can replace medicine. According to past research, a diet with high flavonoid content such as grapes, apples, onions and black tea can help prevent stroke and heart disease. Of course, the lifestyle should also be changed accordingly, including quitting smoking, controlling weight, drinking moderately, eating more fruits and vegetables and low-fat food, and so on. Researchers say that drinking black tea may have limited help to personal health, but overall, its impact can not be ignored.