Learn more while you sleep

Scientists have found that if you need to remember a bunch of information (say, for a big exam), do NOT study right up until time for the exam. Study at least 24 hours before, and sleep on it. They did a study at Harvard that proved this technique works. Participants were separated into three different groups after being shown images that they were told to memorize. One of the groups was tested on the memorization after 20...

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