Dr. Karen Parker Davidson, RN, is a globally recognized expert, innovator, and researcher in nasal function and airway health. She is the founder of the International Society of Airway Function, Diagnostics, and Therapeutics, and the author of Breathe Through Your Nose, Don't Pay Through It, and the My Little Nose children's book series.Dr. Davidson holds more than 40 government-registered works in nasal function and airway health, and has developed novel techniques, algorithms, and data interpretation logic for airway diagnostic devices. She has also authored over 100 publications, lectures, and guest appearances worldwide.Through her pioneering research and clinical expertise, Dr. Davidson bridges science, innovation, and public education, making complex airway physiology accessible to both professionals and the general public. In The Nose Decoded, she reveals the 60 nasal functions that shape breathing, sleep, performance, and whole-body health.