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Nicotine vapes and two drugs called varenicline and cytisine were found to be the stop-smoking aids most likely to help people quit.
Experts agree that all else being equal, it is better to vape than to smoke traditional cigarettes, but e-cigarettes come with their own risks.
Smokers who quit, particularly at young ages, show much lower mortality rates than those who continue smoking.
Officials have more evidence that a chemical called vitamin E acetate is playing a role in the recent vaping outbreak, which has sickened thousands of Americans.
When comparing the dangers of e-cigarettes to cigarettes, some experts believe the health risks of e-cigs are not as serious as those from cigarettes.
A teen in Canada may be the first person to develop "popcorn lung" due to vaping, according to a new report.
The 17-year-old patient's lungs were so severely inflamed and scarred that they had to be replaced.
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