Bipolar Disorder Bipolar Disorder: Symptoms, Causes & Treatment Bipolar disorder is a severe mental illness that causes fluctuations in mood which can range from depression and deep sadness, to mania (extreme euphoria) or hypomania (a more mild form of mania).
Bipolar Disorder Cyclothymia: Symptoms, Diagnosis & Treatment Cyclothymia is a mood disorder marked by ongoing mood swings, with periods of elevated mood or irritability and periods of mild depressive symptoms.
Bipolar Disorder Bipolar Mania: Symptoms, Diagnosis & Treatment Bipolar mania is one phase of bipolar disorder. It is marked by intense euphoria, increased energy, agitation, restlessness, grandiosity, and a reduced need for sleep.