Thursday, June 12, 2008

How much sleep do you *really* need?

In 2002, he compared death rates among more than 1 million American adults who, as part of a study on cancer prevention, reported their average nightly amount of sleep. To many his results were surprising, but they've since been corroborated by similar studies in Europe and East Asia.

read more | digg story

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How learning happens in the brains of sleeping babies

Dozing in a bassinet, a newborn wears a stretchy cap fitted with more than 100 soft electrodes. A low beep sounds, and she squints. Nearby, ...