what mental disorders are genetic?
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['autism.', 'attention deficit hyperactivity disorder.', 'clinical depression.', 'bipolar disorder.', 'schizophrenia.']
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Depression is known to run in families, suggesting that genetic factors contribute to the risk of developing this disease. However, research into the genetics of depression is in its early stages, and very little is known for certain about the genetic basis of the disease.
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What causes anxiety disorders? Researchers are learning that anxiety disorders run in families, and that they have a biological basis, much like allergies or diabetes and other disorders. Anxiety disorders may develop from a complex set of risk factors, including genetics, brain chemistry, personality, and life events.
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['Organic disorders. ... ', 'Psychotic disorders. ... ', 'Affective disorders. ... ', 'Mental retardation. ... ', 'Anxiety related disorders. ... ', 'Somatoform disorders. ... ', 'Personality disorders.']
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Mental disorder. A mental disorder, also called a mental illness or psychiatric disorder, is a behavioral or mental pattern that causes significant distress or impairment of personal functioning. Such features may be persistent, relapsing and remitting, or occur as a single episode.
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['Having a family history of schizophrenia.', 'Some pregnancy and birth complications, such as malnutrition or exposure to toxins or viruses that may impact brain development.']
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Behaviour genetics, also called psychogenetics, the study of the influence of an organism's genetic composition on its behaviour and the interaction of heredity and environment insofar as they affect behaviour.
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Parallels can be drawn to connect creativity to major mental disorders including bipolar disorder, schizophrenia, major depressive disorder, anxiety disorder, OCD and ADHD. For example, studies have demonstrated correlations between creative occupations and people living with mental illness.
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There is substantial scientific evidence that BPD is highly heritable—a finding that suggests that brain abnormalities of this disorder are a consequence of genes involved in brain development (similar to what is known about schizophrenia, bipolar disorder, and autism).
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However, scientists generally agree that genetic and environmental influences are likely to be involved. Certain events during childhood may also play a role in the development of the disorder, such as those involving emotional, physical and sexual abuse. Loss, neglect and bullying may also contribute.
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Organic psychiatric disorders are psychiatric disorders which are caused by demonstrable pathology of the brain or other organ. The causes include: structural disease e.g. brain tumour.
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['Anxiety disorders, including panic disorder, obsessive-compulsive disorder, and phobias.', 'Depression, bipolar disorder, and other mood disorders.', 'Eating disorders.', 'Personality disorders.', 'Post-traumatic stress disorder.', 'Psychotic disorders, including schizophrenia.']
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Most people with a mental illness do not have relatives with the same illness. But research does suggest that mental illness can run in families. The table below shows the chances of schizophrenia or bipolar disorder being passed down through family members.
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A genetic disorder is a disease caused in whole or in part by a change in the DNA sequence away from the normal sequence.
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There are three types of genetic disorders: Single-gene disorders, where a mutation affects one gene. Sickle cell anemia is an example. Chromosomal disorders, where chromosomes (or parts of chromosomes) are missing or changed.
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Biological Factors. Some mental health researchers have encouraged us to think of research on brain scans and similar as indicating that OCD is linked to a genetic or biological cause. This research is often described in terms of chemical imbalances in the brain, faulty brain circuitry or genetic defects.
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Personality disorders are caused by a mixture of genetic factors, such as a family history of disorders and upbringing. People who have a dysfunctional home life in early childhood and adolescence can develop personality disorders in later life.