A mood swing is an extreme or rapid change in mood. Such mood swings can play a positive part in promoting problem solving and in producing flexible forward planning.
However when these changes start to become controlling, mood swings can start to adversely affect the way someone functions.
Famous quotes containing the words mood and/or swing:
“Funny, but when you’re near me I’m in the mood for love.”
—Dorothy Fields (1904–1974)
“Every profound new movement makes a great swing also backwards to some older, half-forgotten way of consciousness.”
—D.H. (David Herbert)