“It’s true that caffeine is a diuretic, but not at the concentration found in most coffee drinks,” Dr. Maughan said. “When we are thirsty, drinking normal tea, coffee or cola helps to rehydrate us. The exceptions are very strong coffee drinks or strong alcoholic drinks like distilled spirits.”
“咖啡因确实具备利尿效果,但大部分咖啡饮料都达不到那么高的浓度,”莫恩博士说道。“当我们口渴的时候,饮用普通的茶、咖啡和可乐一样能够补水,除非饮用的是高浓度咖啡或是蒸馏酒那样烈性酒。”
The hydration index could prove useful when making decisions about what beverages to consume and when. For example, if you’re going on a long drive and won’t have access to fluids (or to bathrooms), you’d be smarter to drink milk with its high hydration index rather than water or iced coffee. But don’t forget that milk has many more calories than water, so don’t overdo it, either.
补水指数对于决定何时饮用何种饮料或许大有用处。例如当你驾驶长途车,且有很长时间都不方便饮水(或是上厕所)时,饮用牛奶(补水指数高于水和冰咖啡)才是个明智之选。但别忘了牛奶比水含有更多的卡路里,喝奶虽好,可不要贪杯噢。
While severe dehydration is rare except in heavy exercise, extreme environments and disease, studies have shown that heat and dehydration can contribute to increased mortality rates during hot weather. “Mortality increases sharply during heat waves, mostly because people don’t drink enough to compensate for their increased fluid losses,” Dr. Maughan said.
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