describe some of the health problems caused by smoking tobacco Secondhand Smoke | and Use Health Consequences of Smoking

But quitting smoking can help the damage from getting worse and keep symptoms under control

This can lead to trouble thinking, learning, or paying attention

The study has several limitations, they noted, including that most participants in the cohort studies were white and that the associations between smoking and mortality could be confounded by differences between smokers and nonsmokers with respect to risk factors including diet, physical activity, and access to medical care. The studys findings underscore the need for continued efforts to reduce the number of people who smoke, wrote Graham Colditz, M.D., of the Washington University School of Medicine, in an accompanying editorial

CA Cancer J Clin

Nicotine can also harm the brain development of children and teens