From persistent cought to unexplained weight loss - watch out for these early signs of lung cancer in non-smokers.

A cough is one of the most common symptoms that sends people to the doctor. As many as 30 million medical visits are related to coughing. Most coughs are caused by upper respiratory infections like a ...

Dave Marcus's persistent cough turned out to be a sign of lung cancer even though he was a non-smoker. Pictured with his partner, Emelie. (Roy Castle Lung Cancer Foundation/SWNS) A non-smoker whose ...