Events or stimuli that highlight the weakness, decay, or vulnerability of the body often activate disgust responses. For example, people often feel disgusted when they encounter the handicapped, the elderly, poor hygiene, body fluids, deformity, corpses, gore (blood or viscera), or animals. Although many of these stimuli are implicated as legitimate disease vectors, there seems to be more going on than a simple adaptive impulse to avoid eating something harmful.
