Evaluate the evidence for a biological cause for all mood disorders. How does this relate to methods of treatment?
Mood disorders such as the bipolar have a genetic basis. If there is a family history of depression; the risk of developing mood disorders doubles. Twin studies (such as McGuffin) show that MZ twins have higher concordance rates for Bipolar than DZs. (McGuffin: MZ=46%, DZ=20%). According to Kendler twin studies has shown that M.D.s are more common in women than in men, however other studies show no difference. Abnormal serotonin transport (SERT) gene could be responsible. According to the current view; multiple genes are probably involved. Based on this the methods of treatment may vary such as prescription of drugs to treat genetic disorders.
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