Everyone’s heard the advice to “sleep on it” when facing a tough problem. Turns out there’s real science behind that old wisdom. Researchers at Northwestern University have shown that dreams ...

Some people dreamed of puzzles, some didn’t, some were lucid, some were not. Interpreting the data proved tricky, but one ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...