Neanderthal DNA may explain why some of us are morning people
by Ian Sample Science editor from Science | The Guardian on (#6H4J6)
Scientists find genes inherited from our prehistoric cousins increase tendency to rise early - useful in regions with short winter days
People who are early to bed and early to rise may have their ancient ancestors to thank for the habit - or at least the Neanderthals with whom their forebears procreated, scientists say.
DNA inherited from our thick-browed cousins may contribute to the tendency of some people to be larks, researchers found, making them more comfortable at getting up and going to bed earlier than others.
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