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Barker is the author of Barking Up The Wrong Tree

Missing an hour of sleep turns a sixth grader’s brain into that of a fourth grader.

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There is a correlation between grades and average amount of sleep.

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Not only does it affect intelligence, lack of sleep also reduces impulse control.

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And when we’re tired it’s actually harder to be happy. We can recall negative memories more than positive ones when we’re exhausted.

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