article_snippet.sent: A power nap of just 45 minutes can boost memory by five times, research has found.
article_snippet.sent: A short doze helps you to retain information you have learned and 'significantly' improves recall, scientists said – meaning naps really could help students revising for exams.
article_snippet.sent: When Some were then retested, those who had slept remembered more word pairs, the journal Neurobiology of Learning and Memory reported last month.
article_snippet.sent: Scientists from Saarland University in Germany, said that during sleep, bursts of brain activity known as sleep spindles play an important role in consolidating newly learned information.
article_snippet.sent: Professor Axel Mecklinger said a nap of just 45 minutes to an hour 'produces a five-fold improvement in information retrieval from memory'. '
article_snippet.sent: The memory performance of the participants who had a power nap was just as good as it was before sleeping, that is, immediately after completing the learning phase.'