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. The Dangers of Vaping How E Cigarettes Affect Student Health Nail your health goals and ditch the vape! Lung Foundation Australia Psychiatry.org Vaping is Unhealthy. Tips and Resources to Help Quit.