This Common Activity Is Reducing Your IQ, According to Research

Get some sleep!!!

TIME

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

Via NurtureShock:

The performance gap caused by an hour’s difference in sleep was bigger than the gap between a normal fourth-grader and a normal sixth-grader. Which is another way of saying that a slightly-sleepy sixth-grader will perform in class like a mere fourth-grader. “A loss of one hour of sleep is equivalent to [the loss of] two years of cognitive maturation and development,” Sadeh explained.

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

Via NurtureShock:

Teens who received A’s averaged about fifteen more minutes sleep than the B students, who in turn averaged fifteen more minutes than the C’s, and so on. Wahlstrom’s data was an almost perfect replication of results from an earlier study of over 3,000 Rhode Island high schoolers by Brown’s Carskadon. Certainly, these are averages…

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