Schizophrenia is not a split personality, but a complex brain disorder

Society · Published 11 October 2026 Swipe more like this →

In short: Affecting roughly 1% of the population, schizophrenia is often misunderstood. It involves significant disruptions to how a person perceives reality, thinks, and behaves. Far from causing a split personality or inherent violence, this condition involves a complex interplay of genetic and environmental factors that alter brain development.

Schizophrenia is a long-term mental health condition characterized by psychosis, meaning an individual may struggle to distinguish their own thoughts from reality. Symptoms are generally categorized into five domains. These include delusions—fixed, false beliefs that differ from one's culture—and hallucinations, where a person perceives things like voices, sights, smells, or tastes that do not exist. Some individuals also experience 'experiences of influence,' feeling that their thoughts or impulses are being controlled or broadcast by others. Additionally, individuals may encounter experiences of passivity, where they feel their actions are not generated by themselves. This condition is often described by medical professionals as a type of psychosis.

Beyond these 'positive' symptoms, the disorder involves disorganized thinking and behavior, which can manifest as jumbled speech or an inability to manage daily tasks like personal hygiene or finances. A third, often overlooked category is 'negative symptoms,' such as a lack of motivation, social withdrawal, or a restricted range of emotions. These symptoms can be highly disabling, sometimes resulting in a person sitting for long periods without activity. Disorganized thought can lead to speech that is difficult for others to understand. This may result in a person being unable to plan ahead or follow necessary steps.

While the exact cause remains unknown, experts suggest a combination of genetic and environmental factors, with stressors or drug misuse potentially acting as triggers. Treatment typically involves a combination of antipsychotic medications and cognitive behavioral therapy (CBT). Antipsychotics are believed to work by reducing levels of dopamine, a chemical in the brain that is thought to be produced in excess during psychotic episodes. Although the condition can involve relapses, recovery is possible; at least one in three people achieve complete remission of symptoms. Doctors often prescribe antipsychotics to manage these symptoms. It is also vital to undergo physical health monitoring, including blood tests and heart checks, while on medication.

General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.

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