Bizarre new research claims that people with a sensitive nose for disgusting smells are more likely to be xenophobic. In a study across nine countries, scientists have linked a repulsion to sweat, bad breath and smelly feet with heightened disliking for refugees. Steering clear of stenches is a natural mechanism that helps us avoid illnesses, experts at the Karolinska Institute in Stockholm explain. But... 

A new study has revealed that the human nose is capable of distinguishing at least one trillion different smells, millions beyond the previous estimates. “Our analysis shows that the human capacity for discriminating smells is much larger than anyone anticipated,” said study co-author Leslie Vosshall, who is head of Rockefeller University’s Laboratory of Neurogenetics and Behavior. The research...