How does manic disorder differ from major depressive disorder?

Manic disorder, also known as bipolar disorder, differs from major depressive disorder primarily in the mood episodes experienced.

1. Manic Disorder (Bipolar Disorder):
   - Manic Episodes: Characterized by periods of abnormally elevated mood, increased energy, impulsivity, and decreased need for sleep.
   - Depressive Episodes: Alternates with depressive episodes, during which individuals may experience sadness, low energy, feelings of worthlessness, and difficulty concentrating.

2. Major Depressive Disorder:
   - Depressive Episodes: Individuals experience persistent feelings of sadness, hopelessness, and a lack of interest or pleasure in daily activities.
   - No Manic Episodes: Unlike bipolar disorder, major depressive disorder does not involve the presence of manic or hypomanic episodes.

In summary, while both disorders involve depressive episodes, bipolar disorder is characterized by the presence of manic or hypomanic episodes, setting it apart from major depressive disorder. The key distinction lies in the occurrence of manic states in bipolar disorder.