June 12, 2009
Sleeping on a problem really can help solve it, say scientists who found a dreamy nap boosts creative powers.
They tested whether "incubating" a problem allowed a flash of insight, and found it did, especially when people entered a phase of sleep known as REM.
Volunteers who had entered REM or rapid eye movement sleep - when most dreams occur - were then better able to solve a new problem with lateral thinking.
Proceedings of the National Academy of Sciences has published the US work.
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