

Unipolar and Bipolar Disorders
Bipolar disorders are characterized by a serious of attacks of elation and depression, with periods of relative normality in between. There are two types of bipolar disorders, type I and type II that differ slightly in their symptomatology and commonality. Bipolar I disorder is characterized by full-blown manic and major depressive episodes and it is less common than bipolar II disorder, which is characterized by clear-cut hypomanic and major depressive episodes. It has been


Comorbidity
Comorbidity is the ´´co-occurrence of two or more mental health problems´´ that due to alterations in ´´psychiatric nomenclature´´, it has ´´emerged as a major clinical, public health and research issue over the past few decades´´. According to Angold and colleagues, there are two types of comorbidity: homotypic and heterotypic comorbidity. The homotypic comorbidity refers to the mental illnesses that exist within the same diagnostic category. For example, cocaine and alcohol