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  2. Health effects of tobacco - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_tobacco

    This is an accepted version of this page This is the latest accepted revision, reviewed on 10 December 2024. Circumstances, mechanisms, and factors of tobacco consumption on human health "Health effects of smoking" and "Dangers of smoking" redirect here. For cannabis, see Effects of cannabis. For smoking crack cocaine, see Crack cocaine § Health issues. "Smoking and health" redirects here ...

  3. 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 ...

  4. List of cigarette smoke carcinogens - Wikipedia

    en.wikipedia.org/wiki/List_of_cigarette_smoke...

    Typical tobacco packaging warning message about the health effect of smoking tobacco The front of a 20 pack of Marlboro Red cigarettes sold in New Zealand. Brazil's third batch of graphic images (since replaced), mandatory on all cigarette packs. Philippines. Graphic tobacco packaging warning messages from 2016 to 2018.

  5. Effects of nicotine on human brain development - Wikipedia

    en.wikipedia.org/wiki/Effects_of_nicotine_on...

    Continued use of nicotine may result in harmful effects to women's brains because it restricts estrogen signaling. [24] This could lead to making the brain more vulnerable to ischemia . [ 24 ] A 2015 review concluded that "Nicotine acts as a gateway drug on the brain, and this effect is likely to occur whether the exposure is from smoking ...

  6. We Were Wrong To Panic About Secondhand Smoke (opinion) - AOL

    www.aol.com/news/were-wrong-panic-secondhand...

    Meta-analyses combining studies of secondhand smoke exposure and risk of lung cancer in people who never smoked have reported increases in different population groups: 24 percent in studies from ...

  7. Tobacco smoking - Wikipedia

    en.wikipedia.org/wiki/Tobacco_smoking

    The smoke from tobacco elicits carcinogenic effects on the tissues of the body that are exposed to the smoke. [ 89 ] [ 100 ] [ 94 ] [ 101 ] Regular cigar smoking is known to carry serious health risks , including increased risk of developing various types and subtypes of cancers , respiratory diseases , cardiovascular diseases , cerebrovascular ...

  8. Health effects of electronic cigarettes - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of...

    In the United Kingdom, vaping is considered by some to be around 95% less harmful than tobacco after a controversial landmark review by Public Health England. [2] Despite this, the use of electronic cigarettes carries many health risks. [1] [3] These risks depend on the fluid in these devices and varies according to design and user behavior. [4]

  9. 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.