Health risks of e cigarettes emerge File:E Cigarettes, Ego, Vaporizers and Box Mods (17679064871).jpg Wikimedia Commons 6 reasons to say no to e cigarettes What's Up at Upstate SUNY Upstate Secondhand e cigarette aerosols expose kids to less nicotine than cigarettes, study finds, but can still be risky CNN E Cigarette How E Cigarettes Work, Health Risks & Teen Use E cigarette Characteristics, Safety Issues, & Regulation Britannica