A nap can do wonders for your factual memory, scientists report. Researchers from the City University of New York asked subjects to memorize word pairs. They were tested twice, once right after the test and again six hours later. Those who snoozed for up to an hour before the second test did 15 percent better than the rest. The results of the study appear in the scientific journal Neurobiology of Learning and Memory. From New Scientist:
"Traditionally, time devoted to daytime napping has been considered counterproductive," the researchers say. It now seems sleep is "an important mechanism for memory formation".