bipolar disorder

US /ˌbaɪ.poʊ.lər dɪsˈɔːr.dər/
UK /ˌbaɪ.poʊ.lər dɪsˈɔːr.dər/
"bipolar disorder" picture
1.

a mental disorder characterized by periods of elevated mood and periods of depression

:
She was diagnosed with bipolar disorder after experiencing extreme mood swings.
Living with bipolar disorder requires careful management and support.