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Disgust is an emotion, typically associated with things that are perceived as unclean or inedible. Disgust is one of the basic emotions of Robert Plutchik's theory of emotions. Disgust may be further subdivided into physical disgust, associated with physical or metaphorical uncleanness, and moral disgust, a similar feeling related to courses of action. Antonyms to disgust are sympathy, liking. Disgust is thought to have its origins in (and in some cases to be identical to) instinctive reactions that evolved as part of natural selection for behavior which tended to prevent food poisoning, or exposure to danger or infection. Martha Nussbaum, a leading American philosopher, wrote a book published in 2004 entitled Hiding From Humanity: Disgust, Shame, and the Law which examines the relationship of disgust and shame to a society's laws. A recent study found that women and children were more sensitive to disgust than men. Researchers attempted to explain this finding in evolutionary terms.
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