Cool Define Mood Disorder References. A problem that affects someone's emotional state, for example depression or changes caused by…. It’s a disorder in which you experience long periods of.

Web feelings of sadness, tearfulness, emptiness or hopelessness angry outbursts, irritability or frustration, even over small matters loss of interest or. Web during a depressive episode, a person experiences a depressed mood (feeling sad, irritable, empty). These include depression and bipolar disorder.