绿茶和红茶都富含一种多酚类保护性抗氧化剂。更具体地说,它们都含有一种多酚——类黄酮。人们认为绿茶和红茶中的类黄酮可以保护心脏。
And green and black tea both contain caffeine, a known stimulant.
绿茶和红茶都含有一种已知的兴奋剂——咖啡因。
Green tea contains less caffeine than black tea — about 35 mg of caffeine per 8-oz (230-ml) cup for green tea, compared to 39–109 mg for the same serving of black tea.
绿茶中的咖啡因含量比红茶要少,一杯8盎司(230毫升)的绿茶大约含有35毫克咖啡因,而同样的一杯红茶则含有39-109毫克咖啡因。
Caffeine stimulates your nervous system by blocking the inhibitory neurotransmitter adenosine. It also aids the release of mood-enhancing neurotransmitters such as dopamine and serotonin.
咖啡因通过阻断抑制性神经递质腺苷来刺激神经系统。它还有助于释放提升情绪的神经递质,如多巴胺和血清素。
Now the difference.
接下来说一下它们的区别。
Green tea contains EGCG, an antioxidant which in test-tube and animal studies has been shown to fight cancer and bacterial cells and protect both your brain and liver.
绿茶中含有EGCG(一种绿茶提取物),这是一种抗氧化剂,在试管和动物实验中被证明可以抵抗癌症和细菌细胞,保护大脑和肝脏。
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