CausesBy Mayo Clinic staff
Schizoaffective disorder, like schizophrenia, appears to have distinct genetic links. It's unknown exactly what causes the disorder, but it may involve brain chemistry, such as an imbalance of serotonin and dopamine in the brain. Serotonin and dopamine are neurotransmitters — chemicals that help relay electronic signals in the brain — and help regulate mood.
Exposure in the womb to toxins or viral illness, or even birth complications, also may play a role.
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