Post Traumatic Stress Disorder (PTSD)
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Scientific Breakthroughs & Caregiver Tips
Is PTSD Hereditary?
Genetic factors influence whether or not an individual will develop Post Traumatic Stress Disorder. In 2017, the Psychiatric Genomics Consortium found molecular evidence pointing to genetic risk for PTSD after trauma. The study showed that the risk of PTSD is strongest among women.
Using a technique called a genome-wide association study (GWAS), the researchers found that, among American women of European descent, 29% of the risk for developing PTSD is influenced by genetic factors. The genetic risk for PTSD is substantially lower in men.
The study analyzed 20,000 people who participated in 11 multi-ethnic studies around the world. The results reinforced the role of gene variants in PTSD, which had been previously documented on a smaller scale in studies of twins.
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