15 Habits That Will Make You Smarter

4. Sleep More

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While you sleep, your brain goes through a self-cleaning cycle. It flushes out toxic proteins made during the day and sends them to the liver to be excreted. This process makes you smarter, perkier, and healthier when you wake up. Now you know why you’re foggy and cranky when you don’t get enough shut eye! Even animals that do not get enough sleep have poorer concentration, coordination, and memory. They’re even moody! Bill Gates, founder of Microsoft, the world’s largest software company, gets seven hours of sleep a night. He says he can’t be creative with anything fewer. Better to be a productive billionaire than a poor work-a-holic who talks about not getting enough sleep.