Schizophrenia is a chronic disabling illness that may be caused by abnormal amounts of chemicals in the brain. These chemicals are called neurotransmitters.
Neurotransmitters control our thought processes and emotions.
Schizophrenic people may seem different from other people. They may seem to show fewer emotions than other people. They may keep to themselves, withdrawing from social contacts. At times they may seem slowed down, lacking energy. Schizophrenic patients may have unusual beliefs, called delusions.