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A 48-year-old member asked:

What does nicotine do to the body?

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Dr. Alan Wartenberg
A Verified Doctoranswered
A US doctor answeredLearn more
Many things: first and foremost it causes a very significant physical dependency, with a withdrawal syndrome complete with anxiety, irritability, headache, poor sleep and intense craving. It is also a cardiac stimulant and over time is partly responsible for the increase in arteriosclerotic heart disease (and other vascular disease) found in smokers and users of smokeless tobacco&e-cigs as well.

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Last updated Jan 8, 2019

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