1916 9 496/1 The exact type of psychosis does not always bear a specific relation to the etiological factor, but rather may be an exaggeration of a more or less common mood swing.
1965 J. Pollitt i. 5 Manic-depressive type... Commoner among those with a family history of mood swings or similar illness.
2011 Mar. 144/2 Even short-term use [of steroids] can cause mood swings and aggression.