Are Electronic Cigarettes the New Trend? Office for Science and Society McGill University The Harmful Health Effects of Vape Use Advanced DDS All E Cigarettes Emit Harmful Chemicals, but Some Emit More Than Others Berkeley Lab Berkeley Lab News Center Printable materials Vaping Information, Solutions & Interventions Toolkit Stanford Medicine 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.