الفهرس 
Aim of the studyOnly 14 pages are availabe for public view
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Abstract
This work was intended to Study of the prevalence of different affective disorders in adolescents &Review of phenomenological presentation of this age group.
I.The Theoretical Part
This part consisted of a review of the literature on prevalence of mood disorders in school adolescent
First chapter
Talk about epidemiology of Bipolar Disorder, Subgroups and Other Factors & burden of Disease.
Second chapter
Starts with causes of bipolar disorders, as the causes of bipolar disorder likely vary between individuals and the exact mechanism underlying the disorder remains unclear. Genetic studies have suggested that many chromosomal regions and candidate genes are related to bipolar disorder susceptibility with each gene exerting a mild to moderate effect. Physiological causes as Abnormalities in the structure and/or function of certain brain circuits could underlie bipolar. Environmental causes as environmental factors play a significant role in the development and course of bipolar disorder, and that individual psychosocial variables may interact with genetic dispositions. Neurological & Neuroendocrinological in which Dopamine, a known neurotransmitter responsible for mood cycling, has been shown to have increased transmission during the manic phase. Because bipolar disorder affects an individual’s ability to function in society and has a high morbidity rate, evolutionary theory would suggest that the genes responsible would have been naturally selected against, effectively culling the disorder.
Third chapter
Talk about course & prognosis of mood disorders. Studies of the course and prognosis of mood disorders have generally concluded that mood disorders tend to have long.