Why some smoke more than others

This short but interesting article answers this question.

According to some research, the answer is in the genes.
Some people have a natural ability to get rid of the nicotine in their brain quickly (which is good because nicotine is toxic). But these people also get rid of the pleasure quickly, hence they tend to smoke more to compensate.
As they say at the end of the article, what natural selection has favoured as healthy may end up killing you faster :)


Posted in: _Sciences