Figuring out what makes our biological clocks tick could do everything from cure disease to ease astronauts' lives.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/eUfEqIjUPhw" height="1" width="1"/>
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Figuring out what makes our biological clocks tick could do everything from cure disease to ease astronauts' lives.<img src="http://feeds.feedburner.com/~r/DiscoveryNews-Top-Stories/~4/eUfEqIjUPhw" height="1" width="1"/>