Because caffeine is a psychostimulant, older women who drink 3 or more cups of coffee or tea a day have less memory loss and cognitive decline than their counterparts who drink less or none.

因为咖啡因是一种精神安定药，老年妇女每天喝3杯或以上的咖啡或茶，记忆的丧失和认知能力的下降要比对喝少或根本没喝的要少。

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However, green tea contains less caffeine than coffee: there are approximately thirty to sixty mg. of caffeine in six - eight ounces of tea, compared to over one-hundred mg. in eight ounces of coffee.

不过绿茶中的咖啡因含量比咖啡少得多：6 ~ 8盎司茶叶中大约含有30 ~ 60 mg的咖啡因，而8盎司的咖啡中含有超过100 mg咖啡因。

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Although tea was expensive, it cost less per cup than coffee, and before 1825 tea outsold coffee.

尽管茶很贵，每杯的价格还是比咖啡低。1825年之前茶的销量就超过了咖啡。

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Easier to chug than hot coffee or tea, less likely to upset your stomach than fizzy energy drinks, doing it all without leaving a gritty coating in your mouth like a 5-Hour Energy Shot.

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