Doctors Say Vaping May Be Causing 'Popcorn Lung' YouTube Health experts are sounding the alarm about a serious condition linked to vaping, known as "popcorn lung" or bronchiolitis obliterans. This irreversible lung disease is caused by harmful chemicals, like diacetyl, found Popcorn Lung (Bronchiolitis Obliterans): Causes & Treatment The Effects of Vaping and Smoking Weed on the Lungs Human STEAM Vaping: Get the Facts. Protect Your Future Anne Arundel County Health Department Why THC Vaping Can Destroy Young Lungs