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tobacco, common name of the plant Nicotiana tabacum and, to a limited extent, Aztec tobacco ( N. rustica) and the cured leaf that is used, usually after aging and processing in various ways, for smoking, chewing, snuffing, and extraction of nicotine.
Tobacco. Nicotine contained in tobacco is highly addictive and tobacco use is a major risk factor for cardiovascular and respiratory diseases, over 20 different types or subtypes of cancer, and many other debilitating health conditions. Every year, more than 8 million people die from tobacco use.
Cigarette smoking harms nearly every organ of the body, causes many diseases, and reduces the health of smokers in general. 1,2. Quitting smoking lowers your risk for smoking-related diseases and can add years to your life. 1,2.
Smoking causes cancer, heart disease, stroke, lung diseases, diabetes, and chronic obstructive pulmonary disease (COPD), which includes emphysema and chronic bronchitis. Smoking also increases risk for tuberculosis, certain eye diseases, and problems of the immune system, including rheumatoid arthritis.
Key facts . Tobacco kills up to half of its users. Tobacco kills more than 8 million people each year. More than 7 million result of direct tobacco use while around 1.2 million are the result of to second-hand smoke. Over 80% of the world’s 1.3 billion tobacco users live in low- and middle-income countries.
Apr 19, 2024 · Smoking, the act of inhaling and exhaling the fumes of burning plant material. A variety of plant materials are smoked, including marijuana and hashish, but the act is most commonly associated with tobacco as smoked in a cigarette, cigar, or pipe. Learn more about the history and effects of smoking in this article.
Tobacco smoking is the practice of burning tobacco and ingesting the resulting smoke. The smoke may be inhaled, as is done with cigarettes, or simply released from the mouth, as is generally done with pipes and cigars. The practice is believed to have begun as early as 5000–3000 BC in Mesoamerica and South America. [1]
