Why Can't I Inhale From My Electronic Cigarette Anymore? X Bar Vaping Might Feel SafeUntil It Isn't. Just because it smells sweet and feels light doesn't mean it's harmless. Many believe vaping is a safer choice, but is it really? Pulmonologist Vaping Impairs Vascular Function, Even Without Nicotine, Study Finds If you vape, you inhale a lot of harmful substances. These can damage your heart and lungs.