Hi again, I’m not sure I completely understand your question but I’ll try to answer as best I can. Various twin-studies have extrapolated data arguing BPD inheritance is 40 to 70% – however no genes have been conclusively identified which could cause it. Research suggests a childhood anxious-ambivalent attachment style is a risk factor for the illness, but so is overbearing intrusive mothering. Both of these don’t constitute trauma in the usual sense of the word. Nevertheless sexual, physical and emotional abuse are highly correlated with the disorder meaning trauma seems to play a major role in disease aetiology. Finally females are more likely than men to be diagnosed with BPD but this is usually due to stigma and prejudice – women are labelled mentally ill and end up as inpatients while men are called antisocial and end up in prison. The illness is more or less egalitarian when it comes to gender, however there are important differences between sexes in the way it expresses itself. Overall I think the biosocial model explains it best: Bpd is the result of an unidentified genetic vulnerability to emotional lability and impulsivity and genes are switched on by an adverse formative environment. Nevertheless it’s possible to get Bpd without trauma, or have trauma and not get Bpd which poses more questions. Even so, treatment is just the same and because the recovery rates stand at 80–90% we have every reason to be hopeful

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Freelance journalist writing on mental health and disability. Words have the power to shine a light on realities otherwise missed.

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