People diagnosed with schizophrenia suffer from symptoms that render them unable to function mentally and socially. These include visual or auditory hallucinations, delusions, and disorganised thinking and speech. Without a doubt, this mental disorder is disabling.
Despite the prevalence of schizophrenia its causes have been the subject of much debate. Several studies suggest that a combination of genetic and environmental factors play a role in its development but these ideas remain hypothetical in nature. However, an emerging and controversial hypothesis suggests a viral origin. Accordingly, schizophrenia might be a product of ancient viral infections.