Introduction Mood disorder is known to be caused by life events and psychosocial factors. Nevertheless, evidence has been found that strongly suggest that biological factors such as genes and neurotransmitters play a role in mood disorders such as bipolar depression and substance use disorders (cite). In this paper, a milder unipolar depression, dysthymia, will be examined as whether biological factors play a role in it. Dysthymia is defined as a mild chronic depression which last …showed first 75 words of 1782 total…

…showed last 75 words of 1782 total…substrate and discovering antidepressants that have no or less side effects. trait or symptoms of depression to allow early treatment. psychotherpy should be carried out together with pharmacotherapy to enhance treatment. more reseach on the effect of neurotransmitters on mood need to be conducted in the future to provide solid evidence. chemical imbalance can be caused by many other factors such as deficiencies in nutrition, stress, disease, drugs. But it does have a biochemical basis.