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4. Genetics Behind Cluster C Personality Disorders

According to genetic epidemiologic research, all ten types of personality disorders have modest to moderate chances of genetic inheritance. Studies on families, and those focusing on twins, found a significant occurrence of the disorders within families. The chances of inheriting AVPD was 28 percent, but the chances were higher for DPD, at 57 percent. Researchers found a 77 percent chance of passing on OCPD through the family gene pool. Those who share these genes may be more vulnerable to personality disorders. Introversion is an additional genetic risk factor among those diagnosed with AVPD. Variations in the COMT gene also contribute to the genetic risk. This gene is responsible for creating an enzyme that controls stress and other aspects of human personality.

is avoidant personality disorder genetic

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