(revisited after asking questions in session 3)
Biopsychosocial Vulnerability. That’s a mouthful. From what I can gather, we’re talking about three things coming together for the ‘perfect storm’ onset of Bipolar.
Biological factors (aka genetics) is really the keystone here. If you don’t have the genetic component, the other two don’t matter, but if you do, they play their own role in what prompts the first episode. Those other two factors also matter when it comes to how well you can cope with stress. While there’s good stress and bad stress in the sense that you can get a promotion at your job or land a big client, as well as the stress of moving house or a bereavement. You may swing up or down respectively from those stressors.
I’m leaving this here anyway, as I still think that there is something to the theory that you are more vulnerable to triggers because you can’t cope with stress as well as someone else with the same condition.
I’m also including the a full page they referenced as the model for this concept. You can see this come up in research about schizophrenia and bipolar.