Dr. Selby, I want to talk about nicotine itself. It seems to me that the totality of the evidence we've heard so far is that cigarettes are terrible for our health for a million reasons, and that using ENDS, electronic nicotine delivery systems, is by far preferable for those who are dependent on nicotine. I'd like to isolate just what the health impacts of nicotine itself are.
First, how addictive is pure nicotine? If a person were starting to use a vaping machine to ingest nicotine, would it have the same addictive properties as smoking cigarettes?