Lung cancer has long been associated with smoking, but rising pollution levels, especially in cities like Delhi, are now contributing to its spread. But what about passive smoking—can it also cause lung cancer? And why are non-smokers being diagnosed with this deadly disease? Dr. Ghanashyam Biswas, Consultant Medical Oncologist and Executive Director at Sparsh Hospitals and Critical Care, Bhubaneswar, discusses these pressing questions in this podcast. He also sheds light on the concept of third