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Nicotine exists in two chemical forms:
Nicotine exists in two chemical forms:
*the "bound" form, which the body has trouble absorbing.
*the "bound" form, which the body has trouble absorbing.
*the "free" form, which passes instantly through the mounth, throat and lungs and into the bloodstream.
*the "free" form, which passes instantly through the mouth, throat and lungs and into the bloodstream.
Free nicotine reaches the brain faster ... gives the smokar a more addictive "kick."
Free nicotine reaches the brain faster ... gives the smoker a more addictive "kick."
[http://www.jstor.org/pss/20207535 JSTOR: Tobacco Control, Vol. 7, No. 3 (Autumn, 1998), pp. 315-319]
[http://www.jstor.org/pss/20207535 JSTOR: Tobacco Control, Vol. 7, No. 3 (Autumn, 1998), pp. 315-319]