“Dreams are where our thoughts go when we try to put the thoughts out of mind.”

“Maybe this is why students dream of sleeping through an important exam, why actors dream of going blank on stage, and why truckers dream of driving off the road,” …

“Wishes suppressed during the day assert themselves in dreams,” Sigmund Freud wrote more than a century ago.

Now new research provides evidence suggesting that not just wishes but all kinds of thoughts we bar from our minds while awake reappear when we sleep.

Harvard University psychologist Daniel M. Wegner and his colleagues tested this notion on 330 college students. Participants were asked to think of a…

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