Early Risers May Have Neanderthal1 Genes2早起的人可能有尼安德特人的基因

Early risers wake up because of their body clock.Researchers said early risers share DNA with Neanderthals—the ancestors3 from 40，000 years ago. They woke up earlier tolook for food as the sun rose. The researchers looked atgenetic information to find out why some people are earlybirds and others are night owls4. The Neanderthal DNA mayget weaker as time passes. Modern life means many of us prefer5 to sleep in. We arebecoming night owls. But it is true that the early bird catches the worm.

早起的人受他们的生物钟影响而醒过来。（剩余582字）