The 15 studies reviewed by the US Surgeon General in 1990 found that four-fifths of people who quit smoking gained weight (average: 5 pounds)
"But the surgeon said let's just say it's throat cancer
Cig-a-likes look similar to combustible cigarettes.[7] In addition to nicotine, propylene glycol, and vegetable glycerin, e-liquids contain benzyl alcohol, terpenes, pyrazines, formaldehyde, acetaldehyde, acrolein, and toluene.[8] The inhalational safety of these compounds is unknown.[9] The presence of diacetyl in e-liquids is a concern because it is a known pulmonary toxin and has a propensity for causing bronchiolitis obliterans, also known as popcorn lung.[9] Of particular concern is the addition of vitamin E acetate in tetrahydrocannabinol-containing e-liquids purchased on the black market because it appears to be associated with the recent outbreak of acute e-cigarette, or vaping, product use-associated lung injury (EVALI).[10-12] Further research is necessary to better characterize the inhalational health risks of these compounds
(Data specific to sexual orientation was collected for the first time by the NHIS in 2013.) Among current cigarette smokers, the proportion of those who smoke every day decreased from 80.8% in 2005 to 76.9% in 2013
