Dr. Frank Navratil was born in Canada and has lived in the Czech Republic since 1997. A naturopathic physician with more than 35 years of clinical experience, he has spent his career helping people improve their health, vitality, and quality of life through nutrition, movement, stress management, and evidence-informed natural medicine.He is the author of several books on natural medicine, meditation, mindfulness, and Buddhist psychology, and has taught courses and lectured internationally. He also developed the Navratil Longevity Assessment, a comprehensive evaluation system designed to provide a broader picture of biological age and long-term health.The arrival of his son, Nicolas, transformed his professional interest in longevity into a deeply personal mission. The promise he made that day became the inspiration for 20 Years Younger.Today, Dr. Navratil continues to teach, write, and develop practical tools that help people add healthy, active years to their lives.