Vaping Think Before You Vape! Vaping isn't harmlesse cigarettes can contain nicotine, heavy metals, and harmful chemicals. Risks include addiction, lung injury, and heart issues. Protect your health and make informed choices! # 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. Medical infograph. The infograph was developed by the Consumer Download Scientific Diagram Vaping releases toxic chemicals, including heavy metals, as well as ultrafine particles that go deep into the lungs. These increase the risk of heart and lung disorders. Know the Risks: E cigarettes and Young People Community Commons