Young, female e cigarette users more likely to have asthma attack, use health services E Cigarette Use Linked to Earlier Asthma Onset in Adults Respiratory Therapy Vaping SWATFlorida E cigarette aerosol isn't just water vaporit contains toxic chemicals like formaldehyde and acrolein (yes, a weed killer!). Vaping can lead to lung disease, Popcorn Lung, and even a collapsed lung. Plus, secondhand Vaping constricts blood vessels, raising heart, lung concerns UPI.com