REM sleep almost always follows non-REM sleep, which is when the brain and body are least active and cold. REM sleep helps enhance memory and learning, possibly by pruning back neural connections to make the brain more efficient. But there’s no obvious relationship between REM sleep duration and cognitive power, which suggests its potential role in learning may be overstated. If Siegel is right, REM sleep might be a new solution to the age-old con-old-old study was published in The Lancet.Read Long Article
