First, mental health issues account for a huge amount of suffering and societal expense. Also, this is a commonly misunderstood issue. We are increasingly fin

First, mental health issues account for a huge amount of suffering and societal expense. Also, this is a commonly misunderstood issue. We are increasingly finding that "psychological" issues have strong links to physiological issues. Here is one example (of many): https://www.nimh.nih.gov/health/publications/pandas/index.shtml https://www.nimh.nih.gov/health/publications/pandas/index.sh... Autoimmune disorders can lead to a huge variety of neurological/psychological issues. All work on better understanding of the immune system is going to help many overlapping disorders. What have previously been seen as "psychological" issues are, for these disorders, only marginally improved by therapy. Therapy can help someone cope, but root causes might be based on immune system issues. I could of course be wrong, but my own unfounded suspicion is that in a few years we will find that a lot of current mental health therapy was rather stone age. Much may be replaced by more fundamental treatments to eliminate the source of basal ganglia (or other structures) inflammation that led to the psychological disorder.