" ... Our grandparents/great grandparents suffered from anxiety and depression, they drank to excess, they physically abused each other, they spent time in psychiatric hospitals and they committed suicide.."
Well - hate to burst your bubble - but both my sets of grandparents were high level successful professionals, they drank only during social occasions, abusing each other was unheard of, never near a psychiatric hospital, and all died of natural causes in old age. They survived one of the most turbulent eras of European history, WW1, Ww2, Communism ... I know this is a singular anecdotal example ( on the record and by personal experience ) - to counteract your extreme post.