(See: Dutra LM, Glantz SA. Electronic cigarettes and conventional cigarette use: a cross-sectional study. Published online March 6, 2014. JAMA Pediatr. doi:10.1001/jamapediatrics.2013.5488.)

"“E-cigarettes have the same physiological effects on the brain and may pose the same risk of addiction to other drugs as regular cigarettes, especially in adolescence during a critical period of brain development. ... Nicotine clearly acts as a gateway drug on the brain, and this effect is likely to occur whether the exposure comes from smoking cigarettes, passive tobacco smoke, or e-cigarettes.” ... “The effects we saw in adult mice are probably even stronger in adolescent animals,” said Dr. Eric Kandel. “E-cigarettes may be a gateway to both combustible cigarettes and illicit drugs.”"

First and foremost regular cigarettes produces many carcinogens, , including formaldehyde, acetaldehyde, and acetone. These three chemicals were tested in the study to see what levels are released when electronic cigarettes are used. The study E-Juice that was purchased at the store (not a custom blend) and was a 50PG/50VG ratio. 100% VG and 100% PG was used as the control groups.

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