F.D.A. Approves Juul Vapes After Yearslong Delay The New York Times JUUL Side Effects: What Are the Health Risks? Did you know defective e cigarette batteries have caused serious burns and injuries? Or that the vapor contains tiny particles of nickel, tin, lead, and chromium, which are inhaled deep into the lungs? Breast Cancer & E Cigarettes: Is Vaping a Safer Alternative to Smoking? Maurer Foundation Does vaping cause throat cancer? Roswell Park Comprehensive Cancer Center Buffalo, NY