Does schizophrenia affect (reduce) intelligence? perhaps it affect it indirectly? perhaps different people have different situations? if it does, what is the best to do to minimize the loss of intelligence? thanks?

There is 100 years research showing schizophrenia impacts frontal lobe higher cortical function intelligence. Machine learning internet tests computer generated algorithmic MMPI-2 (90 years of research, 19,000 empirical studies, 250+ appellate court cases are better than interviews , medical exams, paper tests. Education improves IQ as does Mozart music.

There are multiple components to what is termed intelligence, and yes, schizophrenia does indeed affect portions of cognitive function. There are some reports of increased incidence of dementia in older chronic patients. Minimizing cognitive loss or enhancing intellectual abilities cannot be answered simply, other than to say, get treatment for any medical, neurological, or psychiatric disorders