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Smoking causes many types of deadly cancers, but postmenopausal women who smoke seem to gain some protection from cancer of the endometrium -- the inner lining of the uterus.

Tobacco companies adjusted the menthol levels in cigarettes in order to make them more appealing to young smokers, according to researchers from the Harvard School of Public Health.

A new Canadian study finds that teen smokers often underestimate the addictive power of smoking and only realize they are hooked on nicotine after the fact.

Drivers ages 17 to 20 should not be allowed to legally operate motor vehicles with any detectable level of alcohol in their bodies, according to Sir Liam Donaldson, chief medical officer in England.

Pharmacies would be banned from selling tobacco products under a new smoking-prevention plan submitted to the San Francisco Board of Supervisors by Mayor Gavin Newsom.

No single tactic can solve the problem of youth access to tobacco, and the most effective campaigns include retailer education, visits from law enforcement, and public information, according to researchers at the University of Oxford.

Canadian researchers say that six smoking-cessation treatments all outperformed placebos, but that none achieved particularly impressive results in helping smokers achieve long-term abstinence.

Nicotine is addictive and toxic but also can improve memory, learning and attention, according to researchers who say that nicotine-based drugs could be developed to slow the progress of dementia.