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Sidestream smoke is the main component (around 85%) of second-hand smoke (SHS), also known as Environmental Tobacco Smoke (ETS) or passive smoking. [2] The relative quantity of chemical constituents of sidestream smoke are different from those of directly inhaled ("mainstream") smoke, although their chemical composition is similar. [ 3 ]
Passive smoking is the inhalation of tobacco smoke, called passive smoke, secondhand smoke (SHS) or environmental tobacco smoke (ETS), by individuals other than the active smoker. It occurs when tobacco smoke diffuses into the surrounding atmosphere as an aerosol pollutant , which leads to its inhalation by nearby bystanders within the same ...
Second-hand smoke is a mixture of smoke from the burning end of a cigarette, pipe or cigar, and the smoke exhaled from the lungs of smokers. It is involuntarily inhaled, lingers in the air hours after cigarettes have been extinguished, and may cause a wide range of adverse health effects, including cancer , respiratory infections , and asthma .
Smoking is associated with a decreased risk of Parkinson's disease; however, it is unknown whether this is due to people with healthier brain dopaminergic reward centers (the area of the brain affected by Parkinson's) being more likely to enjoy smoking and thus pick up the habit, nicotine directly acting as a neuroprotective agent, or other ...
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 ...
Everybody knows that smoking gives you cancer and second hand smoke has damaging effects. Exposure to tobacco smoke immediately affects proper functioning of the heart and often leads to heart ...
Nicotine pouches like Zyn have soared in popularity in recent years. Most are marketed as smoke-free, hands-free alternatives to cigarettes and other tobacco products.
Smoking-related deaths in firsthand and secondhand smokers in the US between 2005 and 2009 (no data available for secondhand smokers with COPD deaths [7]) The morbidity of cigarette smoking is nearly 50% with 7 million first-hand smokers and 1.2 millions second hand smokers killed each year. [ 8 ]