I am not discussing the medications. I am saying that there are organic reasons for the symptoms of schizophrenics and people with psychosis. There are chemical and physical difference in the brains and bodies.
These symptoms do not just appear out of no- where.
Yes therapy and behavior modification can help some mitigate some of the symptoms, but these are physical disease. As physical as heart disease, for example.
NIMH · Bipolar Disorder
Can some people help themselves without meds? Sure. But many can not.
I just went off meds recently and had a full-blown manic episode. I was caffeine free, alcohol free, exercising and eating very healthy in a sunny climate.
I am now back on my meds and coming down.