We spend one-third of our lives asleep. Seems like a horrifyingly huge chunk of time to waste (it's not). If only we could throw sleep into a multi-tasking array so we could be productive. At. All. Times. Well, buckle up, because research supports the idea that we can learn in our sleep ... kind of.
A Dream Is A Wish Your Brain Makes
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Why Do We Sleep?
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Key Facts In This Video
There is no solid scientific consensus on why we sleep. 01:56
Black rhinos sleep for one to two hours laying down, and three to four hours standing up. 04:23
Dolphins engage in unihemispheric sleep, which means that one half of the brain is resting while the other half is alert. 08:01
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