Vaping vs Smoking: Understanding the Key Differences and Why Elux Legend Nic Salt Vapes Are a Game Changer Elux Legend Nic Salts How have e cigarettes changed over time? Can vaping cause cancer? The evidence suggests it might. The Washington Post 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