A good night of sleep helps you think

(AP Photo)

June 9, 2011 6:03:01 PM PDT
The best way to find a the solution to a problem may be to sleep on it.

A new study by researchers at the University of Massachusetts found 80% of its participants were able to figure out a trick in a game after a good night's sleep, while 40% of those who stayed awake couldn't.

Researchers say it proves sleep is key to peak cognitive functioning.