An authoritative, accessible guide to how our lungs work and how to protect them. In Breathing Lessons, leading pulmonologist and national spokesperson for the American Lung Association Dr. MeiLan K. Han takes readers on a fascinating tour of this neglected yet crucial organ. Han explains the wonder of breathing and reveals how the lungs serve as the body's first line of defense. She provides a timely overview of the latest scientific thinking about the leading respiratory risks--including indoor and outdoor pollution, smoking and vaping, wildfire smoke, and viruses like SARS-CoV-2--and offers practical advice on how to protect the lungs at each stage of our lives, beginning in the womb. 192 pages pb