A yawn may actually be a sign of love! According to a fascinating research on chimpanzees, the contagious nature of yawns can actually reveal a lot about a relationship. If your partner does not yawn back quickly, there could be problems ahead, a team of Swedish researchers claim. Researchers from Lund University in Sweden did the latest study at Tacugama Chimpanzee Sanctuary in Sierra Leone in west Africa. The scientists noticed ...
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