Charikleia Stefanaki is a consultant pediatrician, specializing in adolescent medicine, with an interest in stress, reproductive endocrinology and metabolism. She is currently a postdoctoral researcher at the Medical School of the National and Kapodistrian University of Athens (NKUA). Her postdoc research focuses on the role of histamine and the gut microbiome in the pathophysiology of polycystic ovary syndrome in adolescents. She earned her medical degree cum laude from the NKUA Medical School and holds an MSc degree in Stress Management and Health Promotion. Her research interests include the immunologic pathways of stress, the role of gut microbiome. and the impact of stress on human body composition. She has published numerous papers on stress, stress management, metabolic stress, adolescent medicine, gut microbiome and reproductive endocrinology, often working with leaders in these fields. She is a regular reviewer for prominent fully peer-reviewed medical journals and is a subsection editor for the Journal of Clinical Medicine and the medical journal Sexes (MDPI). She has served on the Health and Technology Assessment Committee of the Greek Ministry of Health for the last 3 years. Dr. Stefanaki is an adjunct professor who teaches in the Stress Health Management program.