KNOW THE RISKS Health impacts of electronic cigarettes ANU National Centre for Epidemiology and Population Health 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. Restored CDC E Cigarettes and Pregnancy Maternal Infant Health CDC New Infographic Sheds Light on the Truth Behind the Vaping and E Cigarettes Newswire Analysis suggests e cigarette use may be linked to lower rates of smoking