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Experiencing trauma or having certain genetic variants can both put you at risk of depression. But nature and nurture can also interact: traumatic events appear to amplify the effect of genetic risk factors, according to research involving 73,000 people.
People who have depression tend to have a similar level of genetic risk for the condition, regardless of their environment or experiences. But traumatic experiences appear to somehow amplify the impact of these genes, says Gerome Breen at King’s College London, who led the study. …
source: newscientist.com