Once hailed as the doctor who taught Koreans how to grow old slowly, Jung Hee-won is watching his "slow aging" brand fall apart. Allegations of stalking, sexual coercion and claims that he took credit for a former employee’s work have triggered corporate boycotts, the loss of prestigious public roles and a broader reckoning over power, gender and credibility in Korea’s latest wellness industry. From slow-aging guru to policy insider Jung, 41, rose to fame as a geriatrician at Seoul Asan Medical Center, turning complex data on frailty and chronic disease into a simple promise: slow aging. A graduate of Seoul National University College of Medicine, he built his authority treating and studying older patients as Korea grappled with rapid population aging and a growing national focus on healthy longevity. He packaged this philosophy as "slow aging," framing it as the opposite of "accelerated aging," and turned it into social media content and bestselling books offering practical routines on diet, exercise and daily habits for people in their 30s to 50s. Television and radio amplified his