A nap during the day doesn't just beat tiredness, but actually improves the brain's ability to absorb new information, claim US scientists.
Volunteers who slept for 90 minutes during the day did better at cognitive tests than those who were kept awake.
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The latest study, from the University of California at Berkeley, suggests that the brain may need sleep to process short-term memories, creating "space" for new facts to be learned.
In their experiment, 39 healthy adults were given a hard learning task in the morning - with broadly similar results, before half of them were sent for their siesta.
When the tests were repeated, the nappers outperformed those who had carried on without sleep.
Read more @ BBC News
i can't sleep before 10 however tired i am, unless im REALLY ill. so no naps for me
"How many people find fault in what they're reading and the fault is in their own understanding" Al Mutanabbi
Oh..now he tells me that sleeping makes you cleverer.
not cleverer, smarterer
"For too long, we have been a passively tolerant society, saying to our citizens 'as long as you obey the law, we will leave you alone'" - David Cameron, UK Prime Minister. 13 May 2015.