Addictive personality

In the search to explain why some people become addicted while others don’t, one answer has been that some people have an addictive personality i.e. they are just more likely to become addicted. Support for this idea comes from the phenomenon of ‘addiction transfer’, described in a recent article by Samantha Murphy in the New Scientist […]

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Risky behaviour

One of the explanations for addiction is that some individuals have a biological predisposition because they inherit a particular form of dopamine receptor gene (if you want an explanation of dopamine receptor genes see second paragraph). An interesting link has been made between these genes and evolution. The argument goes that the dispersal of our […]

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