Why Get "The Ick"? Evolution Exposes the Hidden Alarm

概要

Why do we suddenly cool on someone we liked? Evolution can cut deep into this. That sudden "ugh" is disgust — originally a danger-avoidance alarm that helped our ancestors dodge rotten food and disease. Evolution kept it, survivors and all, then reused it for mate choice: a "love examiner" that beeps at risky partners. But missing a bad mate cost far more than wrongly rejecting a good one, so the alarm evolved to over-fire — most beeps are false alarms. The ick mirrors not your partner, but the...