Sleep on it: How snoozing makes you smarter

 As we snooze, our brain is busily processing the information we have learned during the day. 
Sleep makes memories stronger, and it even appears to weed out irrelevant details and background information so that only the important pieces remain.
Our brain also works during slumber to find hidden relations among memories and to solve problems we were working on while awake. Continue reading…..

Source: Scientific American