Just How Harmful Is Vaping? More Evidence Is Emerging. The New York Times What is Stealth Vaping? A Guide on How to Stealth Vape No judgment just real talk , , If you smoke, vape, whatevercool., But you still gotta take care of your lungs., , Your body wants to clear mucus, Buildup = thicker phlegm + breathing Vaping Impairs Vascular Function, Even Without Nicotine, Study Finds