Feeling gloomy
by The Economist online
The author of our special report on the human genome interviews Spencer Wells of the Genographic Project, which tracks the migration of humans from a single valley in Africa to the farthest corners of the earth by examing DNA samples collected from volunteers. Mr Wells thinks that mankind's relatively recent turn from hunting and gathering towards agriculture has done the species damage. It might even help explain why 8% of Americans are on anti-depressants at any given time, he says.
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