Schizophrenia is diagnosed through psychiatric evaluation, medical history, and symptom assessment.
Common hallucinations include auditory (hearing voices), visual (seeing things), and tactile (feeling sensations).
They may show disorganized thinking, delusions, hallucinations, and social withdrawal.
There can be variations in speech patterns such as decreased speech or speaking very little, speech that lacks detail or content, speaking quickly and sometimes jumping between topics.
Stress alone doesn't cause schizophrenia but can trigger symptoms in those predisposed to the disorder.
Schizophrenia isn't linked to high IQ. Intelligence levels vary among individuals with the condition.
Yes, genetics play a role. Having a family history of schizophrenia increases the risk.
Conditions 
