Are vape pens, or e cigarettes, ever the better option? Ohio State Health & Discovery Electronic Cigarette Use Increasing Among Airmen > Los Angeles Air Force Base > Article Display Health effects of electronic cigarettes Wikipedia UCLA study finds even short term vaping poses significant risk to health Daily Bruin Vaping is NOT Harmless. Know the long term effects before it's too late! Most e cigarette liquids contain high levels of nicotine, which is highly addictive. Despite the legal age being 21, vaping devices