Growing up I've watched quite a few family members fall apart mentally including mother and step father (they're ok right now), even ending up homeless in a cou

Growing up I've watched quite a few family members fall apart mentally including mother and step father (they're ok right now), even ending up homeless in a couple scenarios. Usually they would be diagnosed with bipolar disorder, or schizophrenia. It was always linked to some stressful event. Loosing a job, not being able to keep the lights on, loosing a partner, or an abusive partner....