India, Sept. 25 -- Your lungs work around the clock to supply oxygen to your body, helping every organ function properly. But smoking exposes them to thousands of harmful chemicals that can damage the airways, affect breathing, and increase the risk of serious conditions such as lung cancer and chronic obstructive pulmonary disease (COPD). The best part is that your body begins to recover soon after you quit smoking. Coughing may gradually decrease, breathing may become easier, and the risk of further damage may begin to fall. However, recovery has its limits, particularly if smoking has already caused permanent damage. This World Lung Day, here is what happens to your lungs when you quit smoking, how long recovery takes, and what you can...