"Doubt is our product," stated a tobacco industry memo from 1969. For half a century, the tobacco industry tried to muddy the link between smoking and cancer. Now, with that effort long since failed, cigarette producers facing dozens of potentially ruinous lawsuits are once again attempting to manufacture doubt.

Thirty years after it began as just another quirky movement in Berkeley, California, the push to ban smoking in restaurants, bars and other public places has reached a national milestone.

The US Surgeon General, US Environmental Protection Agency, and the Radon Program at the Rhode Island Department of Health (HEALTH) recommend that all homes be tested for radon.

New journal starts publication by looking at controlling the No. 1 cause of death

Hong Kong will join the growing number of cities worldwide that ban smoking in indoor workplaces and public areas when a new law comes into effect on January first. Claudia Blume reports from Hong Kong.

Wales is to follow Scotland's lead and outlaw smoking on stage when a full ban comes into force next April.

New findings from a study led by a Mayo Clinic rheumatologist indicate that men with knee osteoarthritis who smoke experience greater cartilage loss and more severe pain than men who do not smoke. Results will be published online this week in the Annals of the Rheumatic Diseases.

Smoking reduction may lead to unexpected quitting. In a review article in the December Nicotine and Tobacco Research, researchers at the University of Vermont have found an unexpected, effective alternative to motivate smokers to quit smoking cutting back.