What does the study of domesticated birds tell us about the evolution of human language?
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Major Side Effects of Listening to Music You Never Knew, Say Experts
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Humans guard against illnesses by avoiding those who look or act sick. But how does that behavioral immune system contend with pandemics like coronavirus, which can spread without symptoms?
Pathogen-avoidance psychology describes how people detect and react to cues of infection risk. You may experience anxiety or in certain contexts you might experience disgust. That s really tied to this idea of preventing infection, because the kinds of things that we become disgusted by are those that are highly pathogenic, said Joshua Ackerman, an associate professor of psychology at the University of Michigan.
But those traits evolved before humans built civilizations that spawned pandemics, and tend to focus on symptoms like sneezing, coughing or open sores.