https://www.ncbi.nlm.nih.gov/pubmed/30760629 Just been sent this link as evidence that vaping is bad for you. https://www.sciencedaily.com/releases/2019/02/190228154841.htm Electronic cigarette use ("vaping") is associated with wheezing in adults, according to a new study published in the journal Tobacco Control. People who vaped were nearly twice as likely to experience wheezing compared to people who didn't regularly use tobacco products. Wheezing, which is caused by narrowed or abnormal airways, is often a precursor to other serious health conditions such as emphysema, gastro-esophageal reflux disease, heart failure, lung cancer and sleep apnea. Any thoughts on the research? To me it looks to be half baked.. they relied on self reporting.. with no reference to overall health of those taking part.