Do you credit genes or upbringing?

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  1. You do not have some condition (perhaps addiction, asthma, or anxiety) that troubles another member of your family.  Do you credit genes or upbringing?
  2. Do genetics play a role in addiction?
    Family studies that include identical twins, fraternal twins, adoptees, and siblings suggest that as much as half of a person’s risk of becoming addicted to nicotine, alcohol, or other drugs depends on his or her genetic makeup.