Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times Vaping isn't harmless. Early nicotine use can harm brain development, affect how nerve cells work, and increase the risk of addiction. Young people who vape are 4x more likely to start smoking Is vaping more harmful than smoking cigarettes? More people incorrectly think so: Newsroom UT Southwestern, Dallas, Texas What is Vaping? Learn About Electronic Cigarettes CASAA Vaping Is Better Than Smoking, But It's Still Very Bad Mother Jones While vaping is not risk free, it is less harmful than tobacco Our World in Data