6. Why can't we all be morning people?
Why Do We Do That?
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Neanderthal DNA Could Be to Blame for Morning People
Geneticist Tony Capra has been doing some really interesting research into our ancient past. It turns out that Neanderthals interbred and share genes with modern humans. And we've discovered that if you have Neanderthal DNA, it makes you more likely to wake up early in the morning.
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