Bipolar Disorder has been broken down into two types:
Bipolar I: For a diagnosis of Bipolar I disorder, a person must have at least one manic episode. Mania is sometimes referred to as the other extreme to depression. Mania is an intense high where the person feels euphoric, almost indestructible in areas such as personal finances, business dealings, or relationships. They may have an elevated self-esteem, be more talkative than usual, have flight of ideas, a reduced need for sleep, and be easily distracted. The high, although it may sound appealing, will often lead to severe difficulties in these areas, such as spending much more money than intended, making extremely rash business and personal decisions, involvement in dangerous sexual behavior, and/or the use of drugs or alcohol. Depression is often experienced as the high quickly fades and as the consequences of their activities becomes apparent, the depressive episode can be exacerbated.
Bipolar II: Similar to Bipolar I Disorder, there are periods of highs as described above and often followed by periods of depression. Bipolar II Disorder, however is different in that the highs are hypo manic, rather than manic. In other words, they have similar symptoms but they are not severe enough to cause marked impairment in social or occupational functioning and typically do not require hospitalization in order to assure the safety of the person.