Handshake helps us sniff each other out'

Washington: PTI





People sniff their hands twice as much after a handshake to help them pick up chemical signals about others, claims a new research.The number of seconds the subjects spent sniffing their own right hand more than doubled after an experimenter greeted them with a handshake, researchers wrote in the journal eLife.
“Findings suggest people are not just passively exposed to socially-significant chemical signals, but actively seek them out,“ said Idan Frumin, who conducted the study under the guidance of Noam Sobel of Weizmann Institute's Neurobiology department.