Disgusted by that sneezing colleague? Please continue to do so, because it will keep the doctor away.
Feces, snot and saliva. All bodily substances we like to avoid. And not without reason, according to research conducted by psychologist Valerie Curtis. This rejective behavior assists us in preventing the distribution of various scary diseases. Disgust helps us to not sleep with someone with a horrible case of genital herpes, and to stay away from people who have the flu.
The feeling of disgust acts as the first defense mechanism of the body, even before any immune system has to be activated. So don’t feel guilty if you refuse to kiss you girlfriend when her mouth is starting to show the signs of a cold sore; you’re just improving public health.
Curtis V (2011). Why disgust matters. Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 366 (1583), 3478-90 PMID: 22042923
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