Nevertheless, both intravenous and vapor nicotine self-administration paradigms are valuable tools to investigate various aspects of nicotine dependence, and established protocols demonstrate blood levels of nicotines metabolites, cotinine, 5-hydroxycotinine and cotinine N-oxide, similar to that found in human smokers (60, 62, 65, 7274)
Circulation 129(19):19451952
We became less and less capable of seeing ourselves as small within creation, partly because we thought we could comprehend it statistically, but also because we were becoming creators, ourselves, of a mechanical creation by which we felt ourselves greatly magnified, the essayist Wendell Berry writes
In smoking you succumb to a cultural neurosis, a vast sickness
The devices were originally seen as a way to quit smokingthey still have nicotine, but they lack many of the toxic substances real cigarettes contain