Apart from strong evidence that remembering new learning depends on the quality and the quantity of sleep, a recent study of healthy adults by German researchers, finds that sending an electric current through the brain during sleep can improve memory even more than sleep alone. They also found that the electrical boost intensified deep sleep, which in turn leads to increased memory. Even though this method is not used practically the NSF suggests using the tried and true means of improving memory: ‘allow enough time for a good nights sleep’.

Nature 2006 Nov.30, 444(7119) 610-3, Epub 2006 Nov. 5

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