New Infographic Sheds Light on the Truth Behind the Vaping and E Cigarettes Newswire Health Issues What's the Harm? Texas DSHS Impact of vaping on respiratory health The BMJ Vaping and E Cigarettes Causing Outbreak of Respiratory Illnesses, Other Severe Health Problems, and Deaths Sommers Schwartz Vaping and Electronic Cigarette Toxicity Overview and Recommendations (Project VECTOR) Intrepid Lab 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.