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Do you ever find yourself dozing off during the middle of a spelling or a math lesson? If you do, then you are probably not getting enough sleep at night. Not getting enough sleep can make you tired during the day. Lack of sleep can lower your grades in school.
Sleep Is Work
Not getting enough sleep may cause you to nod off during a test. It can also cause you to forget the things you need to know for the test.
At night, when you're sleeping, your brain is working hard. In fact, some parts of your brain work as hard when you are asleep as when you are awake, says a scientist who studies people while they sleep.
"You spend about a third of …