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  2. Health effects of tobacco - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_tobacco

    Smoking most commonly leads to diseases affecting the heart and lungs and will commonly affect areas such as hands or feet. First signs of smoking-related health issues often show up as numbness in the extremities, with smoking being a major risk factor for heart attacks, chronic obstructive pulmonary disease (COPD), emphysema, and cancer, particularly lung cancer, cancers of the larynx and ...

  3. Tobacco smoking - Wikipedia

    en.wikipedia.org/wiki/Tobacco_smoking

    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]

  4. Tobacco packaging warning messages - Wikipedia

    en.wikipedia.org/wiki/Tobacco_packaging_warning...

    In South Africa, the Tobacco Products Control Act, 1993 and its amendments (1999, 2007, 2009), stipulate that a warning related to the harmful effects (health, social, or economic) of tobacco smoking, or the beneficial effects of cessation, must be placed prominently on tobacco products covering 15% of the obverse, 25% of the reverse and 20% of ...

  5. Smoking - Wikipedia

    en.wikipedia.org/wiki/Smoking

    Smoking is a practice in which a substance is combusted and the resulting smoke is typically inhaled to be tasted and absorbed into the bloodstream of a person. Most commonly, the substance used is the dried leaves of the tobacco plant, which have been rolled with a small rectangle of paper into an elongated cylinder called a cigarette.

  6. Tobacco harm reduction - Wikipedia

    en.wikipedia.org/wiki/Tobacco_harm_reduction

    The consumption of tobacco products and its harmful effects affect both smokers and non-smokers, [9] and is a major risk factor for six of the eight leading causes of deaths in the world, including respiratory diseases, cardiovascular diseases, cerebrovascular diseases, periodontal diseases, teeth decay and loss, over 20 different types or subtypes of cancers, strokes, several debilitating ...

  7. Tar (tobacco residue) - Wikipedia

    en.wikipedia.org/wiki/Tar_(tobacco_residue)

    Tar is the name for the resinous, combusted particulate matter made by the burning of tobacco and other plant material in the act of smoking.Tar is toxic and damages the smoker's lungs over time through various biochemical and mechanical processes. [1]

  8. Of all the fashion trends to make a comeback, cigarettes were an unlikely contender. After all, it’s 2024. A year when you can’t go 10 minutes on a night out without smelling the saccharine ...

  9. Nicotine poisoning - Wikipedia

    en.wikipedia.org/wiki/Nicotine_poisoning

    The LD 50 of nicotine is 50 mg/kg for rats and 3 mg/kg for mice. 0.5–1.0 mg/kg can be a lethal dosage for adult humans, and 0.1 mg/kg for children. [19] [20] However the widely used human LD 50 estimate of 0.5–1.0 mg/kg was questioned in a 2013 review, in light of several documented cases of humans surviving much higher doses; the 2013 review suggests that the lower limit causing fatal ...

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