Studies show that the negative health effects of e cigarettes are like that of traditional cigarettes. A Parkview expert explains the dangerous combination of highly addictive nicotine and the chemicals in e liquid. Vaping: Know the Dangers Rady Children's Health Don't be foolede cigs or vapes may be less harmful than cigarettes, but less harmful doesn't mean safe. Vapes can contain harmful substances including nicotine, heavy metals like lead, volatile organic compounds and E Cigarettes That Look Like Cigarettes: The Ultimate Beginner's Guide to Cigalike Vapes YouTube