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The circadian clock: Understanding nature's timepiece

rson with critical responsibilities behind it all. When someone shifts their schedule, we want to find a way to shift their body with them so they remain alert, working optimally and making the right decisions."

Antle also hopes to experiment further with a technique that involves resetting the circadian clock by altering serotonin levels, the same neurotransmitter that the anti-depressant Prozac targets. He says it could one day be possible to move people ahead eight hours simply with a pill and light therapy.

All terrestrial organisms ?even single-celled organisms ?have circadian rhythms. In some cases, the circadian clock contributes to survival strategies as simple as not drying out when the sun comes up. Plants and animals have their own environmental niches and also unique temporal niches, as any cat owner can tell you.


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Source:University of Calgary


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