Religion and schizophrenia
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The relationship between religion and schizophrenia is of particular interest to psychiatrists because of the similarities between religious experiences and psychotic episodes; religious experiences often involve auditory and/or visual hallucinations, and those with schizophrenia commonly report similar hallucinations, along with a variety of beliefs that are commonly recognized by modern medical practitioners as delusional. In general, religion has been found to have "both a protective and a risk increasing effect" for schizophrenia.
A common report from those with schizophrenia is some type of a religious belief that many medical practitioners consider to be delusional - such as the belief they are divine beings or prophets, God is talking to them, they are possessed by demons, etc. Active and adaptive coping skills in subjects with residual schizophrenia are associated with a sound spiritual, religious, or personal belief system. In a study of patients with schizophrenia that had been previously admitted to a hospital, 24% had what the medical field refers to as religious delusions.
Trans-cultural studies have found that such religious beliefs, which often may not be associated with reality, are much more common in patients with schizophrenia who identify as Christian and/or reside in predominately Christian areas such as Europe or North America. By comparison, patients in Japan much more commonly have delusions surrounding matters of shame and slander, and in Pakistan matters of paranoia regarding relatives and neighbors.
Schizophrenia is a complex psychotic disorder in which symptoms include emotional blunting, intellectual deterioration, social isolation, disorganized speech and behavior, delusions, and hallucinations. The causes of schizophrenia are unclear, but it seems that genetics play a heavy role, as individuals with a family history are far more likely to suffer from schizophrenia. The disorder can be triggered and exacerbated by social and environmental factors, with episodes becoming more apparent in periods of high stress. Neurologists have found that the schizophrenic brain has larger ventricles (fluid-filled cavities) compared to a well brain. This is hypothesized to be due to loss of nerve cells.Symptoms usually appear around the onset of early adulthood. It is rare for a child to be diagnosed with schizophrenia, in part because of the difficulty in establishing what erroneous thoughts and beliefs can be attributed to childhood development and which thoughts and beliefs can be attributed to schizophrenia. With psychiatric medication (usually antipsychotics) and therapy, individuals with schizophrenia can live successful, productive lives. There is growing evidence that those without psychiatric medication can similarly live successful, productive lives. A recent study found that patients not on antipsychotic medication were less likely to relapse over a twenty-year period. 
Role of religion in schizophrenia treatment
It has been shown in longitudinal studies that those suffering from schizophrenia have varying degrees of success when religion plays a significant role in their recovery. It would seem that the use of religion can either be a helpful method of coping with the disorder, or it can be a significant hindrance in recovery. Especially for those who are active in a religious community, religion can also be a very valuable tool in coping with the disorder. It can be difficult, however, to distinguish if a religious experience is genuine to the spiritual person, or if it is a positive symptom of the illness. This is where a skilled and reliable therapist can help. Provided that a therapist is open to the use of religion in one's treatment, and that the patient is open and receiving said treatment, it is entirely possible to tie religion in with professional therapeutic aids and medication in order to meet a desirable goal. Those who are involved in their church and are spiritual on a daily basis, while getting psychiatric treatment have reported fewer symptoms and a better quality of life. They learn to see their religion as a source of hope rather than a tormenting reality.
Religion as a trigger for schizophrenia
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Schizophrenia can be triggered by a variety of environmental factors, including significant stress, intensely emotional situations, and disturbing or uncomfortable experiences. It is possible that religion itself may be a trigger for schizophrenia; religious imagery is often very grandiose, and defies commonly held beliefs of what is realistic and natural in the world. Experiencing an intense religious experience may trigger a psychotic episode in those who are vulnerable to them, because religion often requires a believer to suspend their usual idea of what is possible and impossible. This could potentially lead to a psychotic episode due to the shift in realistic thinking; a sufferer may believe that they themselves are religious deities or Messiahs, or that God himself is speaking to the individual. These symptoms may cause violent behavior, either on others or themselves because of taking passages in the bible literally. In some instances, they may also experience more distress-inducing symptoms if they believe that God is using their illness as a punishment. Religion, depending on how the patient views it, can be paralyzing and quite harmful, in that the patient may refuse treatment based on religious beliefs; in certain instances, one might believe that their delusions and hallucinations are actually a divine experience, and therefore deny any treatment. It has been shown that those with schizophrenia who suffer from religious delusions are more religious than those who do not suffer from these delusions. It has also been shown that those who suffer from religious delusions are less likely to continue long-term treatment.
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