Tobacco control is a field of international public health science, policy and practice dedicated to addressing tobacco use and thereby reducing the morbidity and mortality it causes. Since most cigarettes and cigars and hookahs contain/use tobacco, tobacco control also concerns these. E-cigarettes do not contain tobacco itself, but (often) do contain nicotine. Tobacco control is a priority area for the World Health Organization (WHO), through the Framework Convention on Tobacco Control. References to a tobacco control movement may have either positive or negative connotations, depending upon the commentator. Tobacco control aims to reduce the prevalence of tobacco use and this is measured with the "age-standardized prevalence of current tobacco use among persons aged 15 years and older". Source: Wikipedia (en)