Problem: Mood Symptoms: Bipolar Disorder: In bipolar disorder, mood symptoms fluctuate between depressive and manic/hypomanic states. Patients alternate between periods of mania and depression, which can last from days to months. The cycling can be rapid (within days) or more extended (over years) depending on the individual. Example: A person with bipolar disorder may feel extremely energetic and confident for a week, then suddenly plunge into a depressive state where they can't get out of bed for weeks. Depressive Disorder: Individuals with depressive disorders predominantly experience episodes of depression without the alternating manic phases. While they may have periods of feeling "normal" between depressive episodes, these periods do not include manic symptoms. Example: A person with depression may have extended periods of low mood but will not have alternate significant periods of elevated mood or energy. Need Assignment Help?