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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Bow-and-Arrow Technology at Fa-Hien Lena 48000 years ago

 The research conducted at Fa-Hien Lena cave revealed an extensive osseous (bone) toolkit. The archaeologists identified 130 bone projectile...