Les extensions de cheveux: un business payant, mais pas pour celles qui les vendent.

NPR (…) On a trip to Congo, anthropologist Nathalie Fernando of the University of Montreal played 11 excerpts of Western songs to 40 Pygmies. Some songs, such as “Cantina,” trigger positive feelings in Westerners. Others, like the Psycho theme or Richard Wagner’s Tristan und Isolde, trigger negative or sad feelings in Westerners. But the Pygmies didn’t…