Because of the variety of subcategories encompassed within bipolar disorder, the symptoms vary. The most common subcategories of bipolar disorder are bipolar disorder one, bipolar disorder two and cyclothymia. The primary difference between bipolar one and bipolar two is evident in the severity of the manic episodes between each type (Michalak et al 2006). Manic behavior is extreme behavior and some symptoms of bipolar disorder during the manic state include and are characterized by irritability, less sleep, hypersexuality, and more goal-directed actions (Coyle 2007). In bipolar disorder one, the manic episodes are more severe than they are in bipolar disorder two. Bipolar two causes hypomania, which is less extreme mania (Anderson et al 2013). Another state in opposition to the manic state, is the depressive state, which further differentiates bipolar disorder one from bipolar disorder two. However, during the depressive state, the symptoms of bipolar disorder are most similar to those of depression: little to no energy to complete actions like getting out of bed, feeling sad or empty, and thoughts about death. Those with bipolar disorder tend to be easier to be around when they are depressive and not manic and this is because they do not talk as much and don’t act out in a grandiose manner …show more content…
Dr. Mark Zimmerman, the lead researcher of Rhode Island Hospital and Brown University, said the sponsorship of drug companies could impact how doctors diagnose their patients in this aspect (Day 2008). Between 1994 and 2003, the rate of bipolar disorder diagnoses for persons under the age of 18 drastically increased and raised concerns about possible over-diagnosis of bipolar disorder among youth (Bower 2007). As mentioned before, this could be due to the overlap in symptoms between varying psychological disorders, one example being the overlap in depression in bipolar disorder patients during their depressive states and in patients with depression. Another example of overlap can be seen through elated mood and excitability in both ADHD symptoms and the manic state of bipolar disorder symptoms (Bower