Exploring the Impact of E cigarettes on Cardiovascular Health: Insights from Preclinical and Clinical Studies Cardiovascular Toxicology Springer Nature Link NHMRC delivers assessment on electronic cigarettes Lung Health Promotion Centre Print and Download About Vaping Prevention Resources HHS.gov 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. E Cigarettes: Know the Health Risks Department of Health