从成分分析上看,茶和咖啡同是含有兴奋剂——咖啡因的饮料。每克茶叶约含咖啡因15～20毫克,一杯茶水中约含100毫克,每克咖啡中含咖啡因18毫克,一杯冲泡好的咖啡约含100～150毫克。因此,两者都有提神作用,且刺激程度相仿。至于经常饮用哪一种饮料对健康更有益,目前尚无定论。有报告说,大量饮 In terms of ingredient analysis, tea and coffee are drinks containing doping - caffeine. Each gram of tea contains about 15 to 20 milligrams of caffeine, about 100 milligrams in a cup of tea, 18 milligrams of caffeine per gram of coffee, and about 100 to 150 milligrams in a cup of brewed coffee. Therefore, both are refreshing and stimulating to a similar degree. As for what kind of beverage is often more beneficial to health, it is not conclusive at present. There are reports that plenty of drinks