Dr. Ji-Hoon Na is a board-certified pediatric neurologist and a professor at Yonsei University College of Medicine, Gangnam Severance Hospital in Seoul, South Korea. His research focuses on epilepsy, pediatric migraine, mitochondrial diseases, and dietary therapies such as the ketogenic and low-glycemic index diets. He has published extensively on precision medicine and neurometabolism, particularly in the management of developmental and neurogenetic disorders. Dr. Na is also committed to public education and outreach through his medical blog Purple Beauties (https://purplebeauties.com/) and has authored science books aimed at improving understanding of pediatric neurological care. Inspired by Carl Sagan, he aspires to bridge clinical science and public engagement.