The term "smoker's lung" refers to lung damage caused by smoking cigarettes. Over time, the chemicals in cigarettes damage the airways and lungs, leading to lung and respiratory diseases. Damage to ...

Red blood cells carry oxygen from the lungs to every other organ, and blood-forming stem cells must make about 200 billion new red blood cells each day to keep the oxygen flowing. For many years, ...

Add Yahoo as a preferred source to see more of our stories on Google. Our lungs expand when we inhale and contract when we exhale. Sighing can ease lung function, with deep breathing playing a crucial ...

DEAR MAYO CLINIC: As a nonsmoker lung cancer hasn't been a concern of mine, but I recently heard it can affect people who have never smoked. If someone is concerned about lung cancer, what symptoms ...