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What are the causes of Schizophrenia?

The exact causes of schizophrenia are unknown. Research suggests a combination of physical, genetic, psychological and environmental factors can make a person more likely to develop the condition. Some people may be prone to schizophrenia, and a stressful or emotional life event might trigger a psychotic episode.

Factors involved in the development of schizophrenia include:

  • Brain development. Studies of people with schizophrenia have shown there are subtle differences in the structure of their brains.
  • Imbalanced brain chemistry. Research suggests schizophrenia may be caused by an imbalance of neurotransmitters, which may involve excess dopamine or excess serotonin. Other theories implicate the roles of norepinephrine, GABA, neuropeptides, glutamate, and acetylcholine.
  • Pregnancy and birth complications. Research has shown that people who develop schizophrenia are more likely to have experienced complications before and during their birth, such as a low birthrate, premature labor, or exposure to influenza or maternal starvation.
  • Age of birth father. Some data indicate that the age of the father when a child is born has a correlation with the development of schizophrenia. In studies of schizophrenia patients with no family history of the illness on either their mother’s or father’s side, those born from fathers older than the age of 60 were vulnerable to developing the disorder.
  • Drug abuse. While drugs do not directly cause schizophrenia, studies have shown that drug misuse increases the risk of developing schizophrenia. Certain drugs, particularly cannabis, cocaine LSD or amphetamines, may trigger symptoms of schizophrenia in people who are susceptible. Research has shown that teenagers and young adults who use cannabis regularly are more likely to develop schizophrenia in later adulthood.
  • Stressful events. While stress does not cause schizophrenia, stressful events can trigger its development in someone already vulnerable to it. Leading psychological triggers are stressful life events such as death of a loved one, job loss, home loss, divorce, end of a relationship, or physical/sexual/emotional abuse.
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Mental Health Library Sources:

Information included in all topics of the Mental Health Library comes from the Desk Reference to the Diagnostic Criteria From DSM-5 and Kaplan & Sadock’s Concise Textbook of Clinical Psychiatry. Complete diagnostic and treatment information may be found within these publications.

Disclaimer:

Information within the Mental Health Library is not intended to be used for self-diagnosis purposes. Rather, it is provided as a public educational service to make people aware of mental health conditions. Please consult a qualified mental health professional for a diagnosis of any suspected mental health illness.

© Copyright 2023 HUPCFL All Rights Reserved.

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