Bipolar disorder is defined by specific mood episodes on opposite poles of the mood spectrum: “manic,” or elevated, and depressed. These mood episodes come with many additional symptoms beyond changes in mood, including altered cognition, sleep and behavior.
The sudden intensity of a manic episode can be unpleasant and dangerous. Manic episodes are sometimes severe enough to lead to hospitalization, especially when they include psychotic features like delusions or hallucinations.
Symptoms of Mania can be remembered as DIGFAST
So basically mania is a state of mind with loss of insight. It can be diagnosed only if symptoms prevail more than 7 days or 3 days, patient needs to be admitted. Some patients can experience milder forms of these symptoms which are known as Hypomania.
Mood stabilizers and other medications can treat the disorder. In acute manic phase, hospitalisation and Brief Pulse Electro Convulsive therapy may be required.