Prior to their drinking heavily, which characteristics has research suggested to be found in individuals with the strongest genetic predisposition to develop alcoholism?

Question

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Research suggests that individuals who have a strong genetic predisposition to develop alcoholism tend to have high levels of antisocial characteristics and display less notable signs of intoxication after consuming low doses of alcohol. This may lead to increased alcohol consumption and a greater risk of developing alcoholism. Other factors such as social rewards and novelty seeking may also play a role, but they are not as strongly associated with genetic predisposition to alcoholism as antisocial traits.

Prior to Their Drinking Heavily, Which Characteristics Has Research Suggested