Insight - how it works

I have linked elsewhere to the New Yorker article by Jonah Lehrer on Insight, which  says that to solve problems we are concentrating on, but can't answer, we need to stop focusing on them, and relax (take a shower, lie in a bed a moment longer, exercise, meditate).

If you'd rather listen to it than read it, go see him interviewed on the structure of epiphanies. 

Or go visit his great blog, the Frontal Cortex.