Careful manipulation by the tobacco industry, as you can see for yourself, in their internal documents available for free online
Are open or closed vaping systems gaining share
An oft-cited example is Needham, Massachusetts, which raised its smoking age to 21 in 2005, and subsequently saw a much greater drop in the teen smoking rate than surrounding towns
N-acetylcysteine increases the frequency of bone marrow pro-B/pre-B cells, but does not reverse cigarette smoking-induced loss of this subset
A 20mg (2%) Geek Bar contains about 40mg of nicotine total, which equals the nicotine absorbed from roughly 1020 cigarettes
Now comes the million-dollar question: is 5% nicotine a lot , and should new vapers start with this level