A Closer Look at the Body’s Master Clock

Researchers Pinpoint Protein Crucial For Development Of Biological Rhythms In Mice

Johns Hopkins researchers report that they have identified a protein essential to the formation of the tiny brain region in mice that coordinates sleep-wake cycles and other so-called circadian rhythms.

By disabling the gene for that key protein in test animals, the scientists were able to home in on the mechanism by which that brain region, known as the suprachiasmatic nucleus or SCN, becomes the body’s master c…

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