What is the link between heredity and alcohol addiction?

These genes are passed on to us by our parents. Among the behavioral traits parents can pass on to their children is a predisposition toward alcohol abuse and addiction. Among those abusing alcohol, people who are genetically predisposed to alcoholism have a higher risk of developing an alcohol use disorder,While the environment a person grows up in, along with a person's behavior, influences whether he or she becomes addicted to drugs, genetics plays a key role as well. Scientists estimate that genetic factors account for 40 to 60 percent of a person's vulnerability to addiction.

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