Recent research suggests that observing groups such as the homeless and drug addicts triggers:

Name: Recent research suggests that observing groups such as the homeless and drug addicts triggers:
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Recent research suggests that observing groups such as the homeless and drug addicts triggers disgust. This is due to a primal human instinct to avoid potential sources of infection or disease, as people in these groups may be more likely to carry illnesses or have poor hygiene.

Recent Research Suggests That Observing Groups Such as the Homeless