Sleep boosts lateral thinking
Study shows the value of sleeping on a problem.
22 January 2004

© Bananastock
the puzzle

"Sleep on it" is standard advice to anyone agonizing over a tricky puzzle. A study of mathematical problem-solving has now shown that a good night's rest really does give you a fresh perspective.

The discovery lends credence to the popular maxim that sleep stimulates lateral thinking, says Jan Born of the University of Lübeck, Germany, who led the