The Effects of Vaping on Oral 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. The Dangers of Vaping and Oral Nicotine Use Among Youth Infographic: E cigarettes & Cardiovascular Disease World Heart Federation E Cigarettes: Know the Health Risks Department of Health Public Health Consequences of E Cigarettes