We often talk about ‘alchemy’ among people who behave well immediately. One fact may be hidden behind this revelation, according to a study, people who share identical body odors are more likely to become friends.
‘Non-human terrestrial mammals constantly sniff at each other and based on that determine who their friends or foes are,’ writes a team of researchers led by Imphal Rawrapi at the Wiseman Institute of Science in Israel. Their study was published Friday in the journal Scientific Advances.
The group considers that when humans are looking for friends who look like themselves, humans smell each other in order to assess similar body odors and their friendly compatibility. To verify this, they collected samples of same-sex friends who were not in a romantic relationship and said they were in love with each other.
They found twenty pairs of agolites aged 22 to 39, half male and half female. To avoid odor contamination, participants should avoid certain foods and sleep with their partner and their pets in a given cotton T-shirt.
The T-shirts were collected and then analyzed by an electronic nose, a machine for analyzing the chemical composition. The researchers found that the scent of each pair of friends was generally closer than the number of non-friends formed approximately.
To see if the results of the machine matched human consciousness, the team added noses. They had to smell the scent of two friends and the scent of a third – and the couple was able to identify.
Another hypothesis may explain this alfactory proximity, however: friends spend a lot of time together and share common factors such as where they live and what they eat.
Therefore, the researchers wanted to determine if that scent predicted the friendly compatibility of two people who did not know each other. By appointing 17 strangers, they found that in 77% of cases the similarity of smell predicts a better understanding between the two persons … Conversely, in 68% of cases the lack of chemistry.
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