AirWays

This book explores the integral connection between cranial structure and breathing, emphasizing how the shape of our airway influences whether we breathe through the nose or mouth — a difference that impacts sleep, physiology, and nervous system health. It covers topics such as nasal versus mouth breathing, CO2 tolerance, sleep issues, and practical biohacking protocols, with insights from Dr. Stig Severinsen. Co-authored by Dr. John Lieurance, the work highlights how modern craniofacial changes and airway restrictions can affect overall well-being.