A newly discovered addiction gene could be fuelling teenage binge-drinking, research suggests.
The mutant version of the RASGRF2 gene makes the brain more sensitive to habit-forming rewards such as alcohol, studies have shown.
In both mice and young teenage boys it was closely linked to alcohol-seeking behaviour.
A group of 16-year-olds with the genetic variant drank alcohol more frequently than boys who did not possess it.
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Freezing with some fog patches tonight