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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.
Nicotine is a naturally produced alkaloid in the nightshade family of plants and is widely used recreationally as a stimulant and anxiolytic. As a pharmaceutical drug, it is used for smoking cessation to relieve withdrawal symptoms. Nicotine acts as a receptor agonist at most nicotinic acetylcholine receptors (nAChRs), except at two nicotinic receptor subunits where it acts as a receptor antagonist.
A cigarette is a narrow cylinder containing a combustible material, typically tobacco, that is rolled into thin paper for smoking. The cigarette is ignited at one end, causing it to smolder; the resulting smoke is orally inhaled via the opposite end. Cigarette smoking is the most common method of tobacco consumption. The term cigarette, as commonly used, refers to a tobacco cigarette, but the word is sometimes used to refer to other substances, such as a cannabis cigarette or an herbal cigarette. A cigarette is distinguished from a cigar by its usually smaller size, use of processed leaf, and paper wrapping, which is typically white.
The tobacco industry comprises those persons and companies who are engaged in the growth, preparation for sale, shipment, advertisement, and distribution of tobacco and tobacco-related products. It is a global industry; tobacco can grow in any warm, moist environment, which means it can be farmed on all continents except Antarctica.
Snus is a tobacco product, originating from a variant of dry snuff in early 18th-century Sweden. It is placed between the upper lip and gum for extended periods, as a form of sublabial administration. Snus is not fermented. Although used similarly to American dipping tobacco, snus does not typically result in the need for spitting and, unlike naswar, snus is steam-pasteurized.
Cotinine is an alkaloid found in tobacco and is also the predominant metabolite of nicotine. An anagram of the word "nicotine", it is used as a biomarker for exposure to tobacco smoke. Cotinine is currently being studied as a treatment for depression, PTSD, schizophrenia, Alzheimer's disease and Parkinson's disease. Cotinine was developed as an antidepressant as a fumaric acid salt, cotinine fumarate, to be sold under the brand name Scotine but it was never marketed.
West is a German brand of cigarettes, currently owned and manufactured by Imperial Brands.
Radioactive quackery is quackery that improperly promotes radioactivity as a therapy for illnesses. Unlike radiotherapy, which is the scientifically sound use of radiation for the destruction of cells, quackery pseudo-scientifically promotes involving radioactive substances as a method of healing for cells and tissues. It was most popular during the early 20th century, after the discovery in 1896 of radioactive decay. The practice has widely declined, but is still actively practiced by some.
Silk Cut is a British brand of cigarettes, currently owned and manufactured by Gallaher Group, a division of Japan Tobacco. The packaging is characterised by a distinctive stark white packet with the brand name in a purple, blue, red, silver, white or green square.
Y1 is a strain of tobacco that was cross-bred by Brown & Williamson to obtain an unusually high nicotine content. It became controversial in the 1990s when the United States Food and Drug Administration (FDA) used it as evidence that tobacco companies were intentionally manipulating the nicotine content of cigarettes. Y1 has also been investigated by the Pan American Health Organization (PAHO).
Snuff is a type of smokeless tobacco product made from finely ground or pulverized tobacco leaves. It is snorted or "sniffed" into the nasal cavity, delivering a swift hit of nicotine and a lasting flavored scent. Traditionally, it is sniffed or inhaled lightly after a pinch of snuff is either placed onto the back surface of the hand, held pinched between thumb and index finger, or held by a specially made "snuffing" device.
An electronic cigarette is an electronic device that simulates tobacco smoking. It consists of an atomizer, a power source such as a battery, and a container such as a cartridge or tank. Instead of smoke, the user inhales vapor. As such, using an e-cigarette is often called "vaping". The atomizer is a heating element that vaporizes a liquid solution called e-liquid, which quickly cools into an aerosol of tiny droplets, vapor and air. E-cigarettes are activated by taking a puff or pressing a button. Some look like traditional cigarettes, and most kinds are reusable. The vapor mainly comprises propylene glycol and/or glycerin, usually with nicotine and flavoring. Its exact composition varies, and depends on several things including user behavior.
Smoker's melanosis is seen with the naked eye as a brown to black pigmentation of the oral tissue i.e. the gums, cheeks or palate as well as in larynx. It is most often seen in the lower labial gingiva of tobacco users. Most easily it is found in Caucasians, due to their lack of a genetically caused melanin pigmentation.
Ventilated cigarettes are considered to have a milder flavor than regular cigarettes. These cigarette brands may be listed as having lower levels of tar ("low-tar"), nicotine, or other chemicals as "inhaled" by a "smoking machine". However, the scientific evidence is that switching from regular to light or low-tar cigarettes does not reduce the health risks of smoking or lower the smoker's exposure to the nicotine, tar, and carcinogens present in cigarette smoke.
Golden Bat is a Japanese filterless brand of cigarettes, currently owned and manufactured by Japan Tobacco.
A heated tobacco product (HTP) is a tobacco product that heats the tobacco at a lower temperature than conventional cigarettes. These products contain nicotine, which is a highly addictive chemical. The heat generates an aerosol or smoke to be inhaled from the tobacco, which contains nicotine and other chemicals. HTPs may also contain additives not found in tobacco, including flavoring chemicals. HTPs generally heat tobacco to temperatures under 600 °C (1100 °F), a lower temperature than conventional cigarettes. HTPs use embedded or external heat sources, heated sealed chambers, or product-specific customized cigarettes. Whereas e-cigarettes are electronic devices that vaporize a liquid containing nicotine, HTPs usually use tobacco in leaf or some other solid form, although there are some hybrid products that can use both solid tobacco and e-liquids. There are various types of HTPs. The two most common designs are those that use an electric battery to heat tobacco leaf and those that use a carbon ember that is lit and then heats the tobacco. There are similar devices that heat cannabis instead of tobacco.
Alfa was an Italian brand of cigarettes, owned by multinational British American Tobacco. The brand was manufactured by its local subsidiary, BAT Italia, until it was discontinued in 2014. In Japan, Alfa is still being manufactured by Japan Tobacco.
The composition of the emissions generated from heated tobacco products are generally lower than that found in cigarette smoke. This is due to the comparatively low temperatures, the filter systems, and physical design. The composition of what is produced is complex. The main toxicants found in the emissions of cigarette smoke are also found in the emissions of these products in varying concentrations. The aerosol generated contains levels of nicotine and cancer-causing chemicals that are comparable to regular cigarettes. The emissions contained 84% of the nicotine found in regular cigarettes.
Nicotine pouches are white pouches containing nicotine among other ingredients. They do not include tobacco leaf, dust, or stem. The nicotine may either be derived from tobacco plants or may be synthetic. Nicotine pouches are described as either similar to or a tobacco-free version of snus.
References
- ↑ "The Nico Clean Tobacco Card (ca. 1990s)". Oak Ridge Associated Universities. 2021-10-06. Retrieved 2016-03-28.
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- Talmadge, Eric (2006). Getting Wet: Adventures in the Japanese Bath . Kodansha International. p. 173. ISBN 978-4-7700-3020-7.