E cigarette flavored pods induce inflammation, epithelial barrier dysfunction, and DNA damage in lung epithelial cells and monocytes Scientific Reports The rise of teen vaping is worrying doctors worldwide. While e cigarettes were once marketed as a safer alternative, research shows they contain nicotine, heavy metals, and cancer causing chemicals that can damage developing What You Need to Know About Smoking and Lung Cancer Vaping cannabis found to expose lung cells to toxic and cancer linked substances EVALI: New information on vaping induced lung injury Harvard Health While vaping is not risk free, it is less harmful than tobacco Our World in Data