Light receptors in eye play key role in setting biological clock

Biologists at the University of Virginia have discovered a switching mechanism in the eye that plays a key role in regulating the sleep/wake cycles in mammals.

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<p><a href="http://www.physorg.com/news138024162.html">Light receptors in eye play key role in setting biological clock</a></p> <p>Biologists at the University of Virginia have discovered a switching mechanism in the eye that plays a key role in regulating the sleep/wake cycles in mammals.</p>