What are some of the possible negative
side-effects to electronic inhalation of the vapor? Although they do not
produce tobacco smoke, e-cigarettes still contain nicotine and other
potentially harmful chemicals. Nicotine is a highly addictive drug, and recent
research suggests nicotine exposure may also prime the brain to become addicted
to other substances. Also, testing of some e-cigarette products found the vapor
to contain known carcinogens and toxic chemicals (such as formaldehyde and
acetaldehyde), as well as potentially toxic metal nanoparticles from the
vaporizing mechanism. The health consequences of repeated exposure to these
chemicals are not yet clear. Another worry is the refillable cartridges used by
some e-cigarettes. Users may expose themselves to potentially toxic levels of
nicotine when refilling them. Cartridges could also be filled with substances
other than nicotine, thus possibly serving as a new and potentially dangerous
way to deliver other drugs.
https://www.drugabuse.gov/publications/drugfacts/electronic-cigarettes-e-cigarettes
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