Vaping: How popular are e cigarettes? 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 Can vaping cause cancer? The evidence suggests it might. The Washington Post Vaping: Understanding The Rise Of E Cigarettes Henry Ford Health Detroit, MI Vaping May Be More Dangerous Than Cigarette Smoking, Studies Show University Hospitals The reality for teens who vape UT Physicians