E cigarettes are not a healthier alternative to cigarettes. They contain nicotine and many harmful ingredients that can cause cancer and heart disease. Since these products are relatively new, we don't know all Global youth vaping and respiratory health: epidemiology, interventions, and policies npj Primary Care Respiratory Medicine E cigarettes: 'cancer risk close to zero' Bhekisisa What is Vaping? Side Effects & Risks 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. Known Health Effects of E Cigarette Use Kansas Health Institute