Preterm deliveries and babies born small for their gestational age dropped after smoking in public places was banned in Scotland, a new study says.

People who smoke only at weekends cause as much damage to their memory as those who smoke on a daily basis, according to new research.

One doctor calls the ill effects of inactivity the "sitting disease."

A medication commonly used to help people stop smoking may have an unanticipated positive side effect for an entirely different vice: drinking alcohol. A new study finds that varenicline, sold as Chantix, increases the negative effects of alcohol and therefore could hold promise as a treatment for alcoholism.

According to a new study, smoking causes the body to turn against its own helpful bacteria, leaving smokers more vulnerable to disease.

Smoking in men appears to be associated with more rapid cognitive decline, according to a new report.

If the proven long-term benefits of smoking cessation are not enough to motivate young adults to stop smoking, a new study shows that 18- to 24-year olds who stop smoking for at least two weeks report substantially fewer respiratory symptoms, especially coughing.

The life expectancy of a person born in Japan is among the highest in the world (82.9 years) yet tobacco smoking and high blood pressure are still the major risk factors for death among adults in Japan, emphasizing the need to reduce tobacco smoking and to improve ongoing programs designed ...

Sufferers of smoking-related lung diseases could have their debilitating symptoms reduced following the discovery of a potential new treatment.

Casual to moderate use of marijuana has no negative implications for lungs, according to JAMA study.

New research indicates that including comprehensive tobacco cessation benefits in Medicaid insurance coverage can result in substantial savings for Medicaid programs. The study found that every dollar spent in program costs resulted in an average program savings of $3.12, which represents a $2.12 return on investment.

Cigarette and alcohol use among eighth, 10th and 12th-graders is at the lowest point since the 1970s, according to a new survey.