Here's what we found...
While lung cancer may take decades to develop, symptoms do not usually become obvious until the cancer is in its late stages.
They call it a silent cancer, but clinicians and survivors raise their voices to educate others about the disease.
Lung cancer kills 19 people every hour and causes more deaths than the next three most common cancers combined – colon, breast and prostate.
Put down the cigarette and take a deep breath of fresh air.