Sigara ni kitu cha kuvuta moshi kinachojenga uraibu. Kinatengenezwa kwa tumbaku na kusokotwa kwa karatasi maalumu, chenye umbo refu na la mviringo. Sigara zinasababisha madhara makubwa katika mwili wa binadamu: mara nyingi hudhuru mapafu na mfumo mzima wa upumuaji. Sigara za kisasa za viwandani zimechujwa, na pia zinajumuisha tumbaku iliyoandaliwa. Source: World Health Organization estimates, 2000 Kupatwa na moshi wa sigara za wengine Cigarette numbers from WHO [1], population from: China: China Population Information and Research Center (estimate?)Archived copy. Jalada kutoka ya awali juu ya 2015-04-21. Iliwekwa mnamo 2008-08-02., USA: US Census estimate [2], Japan: National Statistics Center intercensal estimate [3], Russia: Population Reference Bureau [4] Archived 27 Mei 2008 at the Wayback Machine., Indonesia: average of 1995 and 2000 figures from Statistics Indonesia Archived copy. Jalada kutoka ya awali juu ya 2015-04-21. Iliwekwa mnamo 2008-08-02., all accessed on 2 August 2008. Per capita consumption given to 3 significant figures. Wikimedia Commons ina media kuhusu: Cigarette Kuhusu uvutaji sigara na afya Society for Research on Nicotine and Tobacco Archived 15 Agosti 2019 at the Wayback Machine.