Losing sodium can affect brain activity, so early symptoms of water intoxication can include irritability, drowsiness and other mental changes.

钠缺乏会影响大脑活动，所以水中毒的早期症状包括易怒、嗜睡等其他精神上的变化。

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Early afternoon is a good time for a nap; the body temperature is high enough to allow the metabolic rate to slow down and drowsiness to take over.

中午时分身体温度足够高，可以降低代谢率和犯困，这是个非常适合小睡一会儿。

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By focusing your mind early you can stay focused and brush off any unwanted drowsiness.

这些主动性的工作可以更有效地帮你集中精神，摆脱困倦。

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By focusing your mind early you can stay focused and brush off any unwanted drowsiness.

这些主动性的工作可以更有效地帮你集中精神，摆脱困倦。

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