The role of puff volume in vaping emissions, inhalation risks, and metabolic perturbations: a pilot study Scientific Reports Vaping Marijuana Causes More Lung Damage Than Vaping or Smoking Nicotine A new study published in Nicotine & Tobacco Research found that those using e cigarettes alone were more than twice as likely to develop COPD than people who didn't use any tobacco products, Question: How do the ingredients in e cigarettes and vaporizers affect respiratory health? Los Angeles ENT Doctors ENT Specialists Top Surgeons Top 5 favorite pro vaping pro harm reduction studies. There are tens of thousands of them, but there are my five favorite most compelling studies done on the topic of nicotine vaping for tobacco Vaping' Increases Odds of Asthma and COPD Johns Hopkins Medicine