The illness can take many different forms and varies in both duration and intensity. Causes A number of theories regarding the cause are now focused on biochemical and physical abnormalities in the brain. Chemical messengers carry signals from one nerve branch to another. Researchers believe that an imbalance in these chemicals contributes to schizophrenia related symptoms. Theories regarding viruses and nutritional imbalances have also been advanced as possible contributing factors.
Some studies also point to a genetic predisposition to the disease.
There are many forms of schizophrenia. Some people may encounter symptoms of the illness once or twice with no recurrence. Others suffer intermittently for years. Paranoid delusions - a mistaken belief that one is being persecuted or watched. Delusions of grandeur - a mistaken belief that one is extraordinarily great or of some exceptional signicance.