Graphical comparison of<unk> s, compared with bipolar disorder and cyclothymia A<unk>  is an extreme or rapid change in<unk> . Such<unk> s can play a positive part in promoting problem solving and in producing flexible forward planning. However, when<unk> s are so strong that they are disruptive, they may be the main part of a bipolar disorder.
Mood swing
Sleep-talking
Moonrise 
Microsleep
Jet lag
Deviated gaze
Free-running sleep
Wandering 