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.

"Last September, in an withMedscape (a website for medical professionals), Thomas Frieden, director of the Centers forDisease Control and Prevention, said that "many kids are starting out withe-cigarettes and then going on to smoke conventional cigarettes." The samemonth he was by the Associated Press as warningthat e-cigarettes are "condemning many kids to struggling with a lifelongaddiction to nicotine."

1. Electronic cigarette companies cannot inform consumers that these products are safer than cigarettes, and they cannot even tell the public that they are free of tobacco.

Once again, I was attacked by my colleagues, including two co-authors of the 2014 Surgeon General's report, for having the nerve to suggest that lifelong smokers of filtered cigarettes may have slightly lower lung cancer risk than lifetime smokers of non-filtered cigarettes.

According to the of the grant proposal, the research question that the lab team is proposing to investigate is as follows: "The goal of this application is to determine the effects of Third Hand Smoke on wound healing. ... It is known that first-hand smoke and secondhand smoke (SHS) inhibit wound healing but nothing is known about the effects of third-hand smoke (THS) on wound healing. ... To address this problem, we will use mice, expose them for 6 months to THS present in their cages and, at the end of the exposure period, we will perform wounds on their backs and study the time course of healing by examining not only the wound areas but also the properties of the tissues."

In other words, there appears to be strong evidence that in the UK, electronic cigarette use is not serving as a gateway by which nonsmokers are becoming addicted to nicotine and then progressing to real cigarette smoking.

Instead, in response, a CDC official defended Dr. Frieden by suggesting that the statement was just an inconsequential slip of the tongue.

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