Val Curtis is Director of the Hygiene Centre at the London School of Hygiene and Tropical Medicine (LSHTM).
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Quotes from the news wire:
We expected that disgust would mirror types of disease, but it seemed to rather reflect the types of things and people that should be avoided so as not to risk catching something infectious.
– Val Curtis
Disgust evolved to protect us from disease in our ancient past. The disgust response today may, or may not, be a good guide to what might make us sick today.
From an evolutionary point of view, sex is both attractive, because it helped our ancestors procreate, and risky -- therefore somewhat disgusting -- because sex risks the transmission of infections.
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