Vaping May Be More Dangerous Than Cigarette Smoking, Studies Show University Hospitals Question: How do the ingredients in e cigarettes and vaporizers affect respiratory health? Los Angeles ENT Doctors ENT Specialists Top Surgeons E cigarette induced changes in cell stress and mitochondrial function ScienceDirect Health experts warn that flavored e cigarettes may lead to permanent lung damage. A U.S. teenager was diagnosed with "popcorn lung" after covertly vaping for three years, resulting in a lifelong, debilitating condition.