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Examples might include your stomach turning at the smell of spoiled food or the sight of feces. The new study in the Proceedings of the National Academy of Sciences investigates whether people who experience a greater pathogen disgust sensitivity that is, people who are more sensitive to feeling disgust will become exposed to fewer pathogens in their local environments, and thus suffer fewer infections, explains coauthor Theresa E. Gildner, assistant professor of biological anthropology at Washington University in St. Louis. Exposure to pathogens Researchers tested whether a self-reported individual level of disgust in response to likely sources of infection was associated with signs of infection in three Indigenous Ecuadorian Shuar communities. The communities were all located in high-pathogen environments, but with differing levels of economic development and participation in activities such as hunting. ....
Disgusted by spoiled food? You may be protecting yourself from disease Feb. 15, 2021 , 3:00 PM Ask a man of the Shuar tribe in Ecuador’s Amazon what disgusts him the most, and he might say eating raw meat; stepping in human feces; or drinking chicha, a traditional alcohol, made “with the spit of a toothless woman,” says Lawrence Sugiyama, an anthropologist at the University of Oregon. Feeling grossed out by potentially contaminated food or spit from an unhealthy person turns out to be a wise reaction for the Shuar, Indigenous people who hunt, gather, and grow crops in the rainforests of south-central Ecuador. In the first study of disgust and the health of Indigenous people, Sugiyama and his colleagues have found that the Shuar who felt the most revolted by raw or spoiled food, or other potential sources of pathogens, are less likely to be fighting a viral or bacterial infection. “Those individuals who scored higher on the Shuar disgust scale had lower levels ....