Smoking may actually have a positive affect on brain function in people with schizophrenia, prompting scientists to study the brain receptors influenced by nicotine.

Much research has been done that illustrates the dangers of second-hand smoke. Now, a new study shows that "third-hand smoke" is also harmful to your health.

Recent studies of smoking cessation medications find that certain drugs are successful at inhibiting brain pathways that enhance feelings of reward and emotion, which smoking activates.

A study finds that by the age of 16, bad habits and lifestyles are at the "point of no return," especially among women.