The pleasurable effects of nicotine have been studied for many years and are one of the reasons people find it so difficult to stop smoking. Some people try a cigarette and hate it on first puff — so they quickly give up smoking and never start again. For others, though, that first cigarette provides such a positive rush that they can't imagine ever not smoking again.

Clearly, different people experience nicotine differently. The reasons for this difference are the subject of a new study published by The University of Western Ontario, and researchers there are examining, specifically, how nicotine travels the brain pathways.

In those who enjoy smoking from the first puff...continue reading »