E cigarettes & Vaping Positive Choices Health impacts of electronic cigarettes ANU National Centre for Epidemiology and Population Health Toxicological Effects of E Cigarettes on Cells, Animals, and Humans and Mechanisms of Toxicity Springer Nature Link Health effects of electronic cigarettes Wikipedia Youth Know the Risks Vaping is often marketed as a safer alternative to smoking, but many vape products contain nicotine, harmful chemicals, and heavy metals that can harm developing brains and lungs.