Tag: drug abuse


September 22, 2009

SNPwatch: Evidence for Gene-Environment Interaction in Alcoholism

The 23andMe Blog

Addiction to alcohol is associated with the brain’s reward system, which reinforces behaviors that feel good — like drinking — by releasing neurotransmitters such as dopamine and endorphins. With prolonged alcohol consumption, a person's brain can gradually adapt to the point that excessive amounts of [...]

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