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Mild dehydration is defined as a 1.5 percent loss in normal water volume in the body. And two recent studies with men and women find that, beyond affecting your body, mild dehydration can impact your mood.
輕度脫水被定義為人體當中有正常水量的百分之五的水分流失。兩個最近的對于男性和女性的研究表明，輕度脫水不僅影響你的身體，還會影響你的心情。
Researchers evaluated 51 healthy men and women three times in three months. All the subjects walked on a treadmill to induce dehydration. The researchers then tested the subjects’ alertness, concentration, reaction time, learning, memory, reasoning and mood level.
研究者在三個月內評估了51名健康的男性和女性三次。所有的研究對象要做的就是單純地誘發脫水。研究者之后測試了研究對象的警覺、集中力、反應時間、學習能力、記憶力和心情的水平。
They found that dehydration in men caused difficulty in memory and alertness. In women dehydration caused little reduction in cognitive ability, but did cause significant fatigue, tension and anxiety. Such changes in mood occurred regardless if the subject was exercising or at rest.
他們發現脫水可引起男性的記憶力和警覺上的困難。女性缺水則可引起認知能力的微小下降，但是卻能引起明顯的疲勞、緊張和焦慮。無論是在鍛煉還是在休息的狀態下這樣的心情改變都會發生。
The results of the study with male participants were published in the British Journal of Nutritionand the women’s results were in the Journal of Nutrition, an American publication.
關于男性參與者的研究結果被發表在了英國營養學期刊上，關于女性的研究結果則被發表在了一個美國發行的營養學期刊上。
So you don’t need to be performing in a triathlon. Even if you’re deskbound—and especially if you’re a woman—your body and your brain might need a shot of H2O.
所以盡管你不是個三項全能運動員。即使你是個長時間坐在桌前的人，尤其如果你是個女人，你的身體和大腦仍然需要隨時補充少量水分。
