Tobacco use is far and away the leading cause of lung cancer, but non-smokers are also at risk, experts say.

People who smoke have the highest risk, and smokeless tobacco is also a threat. About 90% of lung cancer cases could be prevented by eliminating tobacco use, according to the World Health Organization...

Think you're safe from lung cancer because you've never smoked? Think again.

While cigarette smoking is the main cause of lung cancer, it's possible to get the disease without ever lighting up.

"Anyone with lungs can get lung cancer," said Dr. Missak Haigentz Jr., chief of Thoracic and Head and Neck Medical Oncology at Rutgers Cancer Institute of New Jersey in New Brunswick.

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If giving up tobacco is one of your New Year's resolutions, know that it won't be easy but don't give up. Fifty million ex-smokers in the United States are proof that it can be done.

"More than 70% of smokers want to quit smoking and 40% will make an attempt this year, but only between 4% and 7% can quit without support," Jennifer Folkenroth, national senior director of tobacco programs w...

Smokers may think electronic cigarettes will help them quit, but a new study finds no evidence that's the case.

Researchers found that among Americans who'd recently quit smoking, those who were using e-cigarettes were just as likely to relapse in the next year as non-users were.

And the risk of relapse was actually slightly increased among former smokers who were using any type of ...