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 Archived Commentary Facts And Figures: E Cigarette Risk Perception And The Us Evali Outbreak Global Action to End Smoking E Cigarette Vapor Linked to Lung Cancer in Mice Respiratory Therapy Lung Injury Associated with E Cigarette or Vaping Product Use Pediatric Annals