Noun
hypomania (countable and uncountable, plural hypomanias)
(medicine) A mild form of mania, especially the phase of several mood disorders characterized by euphoria or hyperactivity.
But those who suffer from prolonged unresolved hypomania do run the risk of developing full mania, and indeed may cross that "line" without even realizing they have done so. Source: Internet
Mania, however, may be divided into three stages: hypomania, or stage I; acute mania, or stage II; and delirious mania, or stage III. Source: Internet
Overall functioning may actually increase during episodes of hypomania and is thought to serve as a defense mechanism against depression. Source: Internet
In hypomania, there is less need for sleep and both goal-motivated behaviour and metabolism increase. Source: Internet