Health effects of tobacco
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Tobacco products, especially when smoked or used orally, have negative effects on human health. Researchers have addressed concerns about these effects for a long time. They have focused primarily on cigarette smoking.
Tobacco stains on primarily the second and third fingers of a heavy smoker
Dental radiograph showing bone loss in a 32 year old heavy smoker
Posted sign to avoid passive smoking in York University, Toronto, Ontario, Canada
Tobacco
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Tobacco is the common name of several plants in the genus Nicotiana of the family Solanaceae, and the general term for any product prepared from the cured leaves of these plants. More than 70 species of tobacco are known, but the chief commercial crop is N. tabacum. The more potent variant N. rustica is also used in some countries.
Tobacco flakes, sliced from pressed plugs
Tobacco drying kiln in Myrtleford, Victoria, Australia, 2018. This kiln was built in 1957, and moved to Rotary Park in 2000. Kilns of this design were built from the early 1930s through to the late 1960s.
Basma tobacco leaves drying in the sun at Pomak village in Xanthi, Greece
In Minas Gerais, Brazil.