Every day, our lungs circulate 11,000 litres of air, provide us with life-sustaining oxygen and allow us to speak, sing and smell. It’s no secret that our lungs are one of our most vital organs, and yet most of us pay them little attention. The COVID-19 pandemic, however, has reminded us of the importance of our lungs, and sparked interest in their function and the risks they face. 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...