How a Sheep-Herding Cardiologist Spends His Sundays

Five mornings a week, Dr. David Slotwiner, the chief of cardiology at NewYork-Presbyterian Queens hospital, can be found tending to human hearts. But on Sunday mornings, he is on a grass-covered field at a rural farm in Hackettstown, N.J., standing among half a dozen sheep, whistle in hand, teaching his Border collies Cosmo and Luna…

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Morning Person? You Might Have Neanderthal Genes to Thank.

Neanderthals were morning people, a new study suggests. And some humans today who like getting up early might credit genes they inherited from their Neanderthal ancestors. The new study compared DNA in living humans with genetic material retrieved from Neanderthal fossils. It turns out that Neanderthals carried some of the same clock-related genetic variants as…

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