SLEEP!
The brain is in a constant state of tension between cells and chemicals that try to put you to sleep and cells and chemicals that try to keep you awake.
The neurons of your brain show vigorous rhythmical activity when you’re asleep- perhaps replaying what you learned that day.
People vary in how much sleep they need and when they prefer to get it, but the biological drive for an afternoon nap is universal.
Loss of sleep hurts attention, executive function, working memory, mood, quantitative skills, logical reasoning and even motor dexterity.
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睡眠!
大腦長期有兩股張力在拉扯，一邊是令我們睡覺的化學成分和細胞，另一邊是讓大家清醒的化學成分和細胞。
大腦內的神經元在我們睡覺時會有節奏地不斷活動，有可能是在重播著我們在日間所學習的東西。
每個人所需要的睡眠時間和選擇什麽時候入睡都會不同，但對午睡的生理渴求卻是一致的。
睡眠不足會損害專注力、判斷能力、短期記憶、情緒、數理能力、邏輯推理能力，甚至肢體的靈巧性。
