That is right. We don't know a great deal. There are a lot of theories that have been developed, however. People are trying to work on this. Drug companies would like to know about the neurological mechanisms that result in psychosis and mania and depression because they would like to develop more effective drugs. Therapists would similarly like to know more about the mechanisms involved so they can provide more effective treatments.

to me that just sounds like an excuse for capitalism to keep making money and expanding the gap between rich and poor. its a question of the government and drug companies being more interested in generating income than in actually reaching the root cause of issues. im open to statistics which disprove this but havent found any to date!