See protocol stack. (2) A hierarchy of software. A stack is the common set of programs used in a computer. The stack can refer to infrastructure only (see technology stack) or to the applications the company gives its employees (see application stack). It may also refer to an industry set or developer set of programs.
2 types of serious Mood disorders 1.) Major depressive disorder (unipolar:only one mental state =depression) 2.) Bipolar disorder: has both the manic and depressive state
Four Types of Bipolar Disorder. 1  Bipolar I Disorder is an illness in which people have experienced one or more episodes of mania. 2  Bipolar II Disorder is a subset of bipolar disorder in which people experience depressive episodes shifting back and forth with hypomanic episodes, but never a âfullâ manic episode. Cyclothymic Disorder or Cyclothymia is a chronically unstable mood state in which people experience hypomania and mild depression for at least two years.