Vaping has become common, but it's important to know what you're inhaling. Many e cigarettes contain nicotine, heavy metals like nickel and lead, and chemicals that can harm your lungs and overall health. Vaping: The Health Risks and How to Quit HelpGuide.org A new research by scientists at the #UNSW in #Sydney has revealed that #nicotine based #vapes, or #ecigarettes, are likely to cause #cancer of the lung and oral cavity. Link in Bio Hookah vs vape: Understanding the Difference