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| | Mental illness - Wikipedia, the free encyclopedia |
 | | It can be argued that what psychiatry used to consider disorder or illness was likely the result of cultural norms or bias and this perception varies over time and place, but this is true of all illnesses. |
 | | Some mental disorders, such as schizophrenia, are known to be hereditary and possible links between certain genes and particular mental disorders have been found. |
 | | With chronic mental disorders, the chances of the symptoms recurring will be affected by the number of episodes the patient has had in the past, the effectiveness of the treatment, as well as external factors. |
| en.wikipedia.org /wiki/Mental_illness (3110 words) |
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