"An authoritative, accessible guide to how our lungs work and how to protect them. Most of us pay little attention to the workings of our lungs, but the COVID-19 pandemic has sparked interest in their functioning and fear about the risks they face. Dr. MeiLan K. Han, a leading pulmonologist and a national spokesperson for the American Lung Association, takes readers on a fascinating tour of this most vital organ. Han explains the wonder of breathing...