#AsianTrends

A new trend is sweeping across South Korea’s youth: personality tests based on the concepts of testosterone and estrogen, labelled as ‘teto’ and ‘egen’, are becoming the latest markers of identity and compatibility, especially among young singles. This hormone-inspired typology is rapidly nudging aside the long-dominant MBTI as the go-to tool for self-understanding, social interaction, and even dating decisions—a phenomenon already echoed by pop culture and social media, and increasingly stirring discussion among experts.