Look up depression in Wiktionary, the free dictionary.

Depression is a general lowering or reduction, for example of mood, activity, or functionality: Wikipedia does not have an article with this exact name. ... Wiktionary (a portmanteau of wiki and dictionary) is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ...

Psychology and mood

• Depression (mood), a common term for a sad or low mood or emotional state, or the loss of pleasure.
• Clinical depression, or major depressive disorder, a clinical term for a state of intense sadness, melancholia or despair that has advanced to the point of being disruptive to an individual's social functioning and/or activities of daily living. Subtypes of clinical depression:

• Melancholic depression, characterized by the inability to find pleasure in positive things combined with physical agitation, insomnia, or decreased appetite.
• Atypical depression, a common long term cyclical form of depression in which the individual can feel enjoyment, eat, and sleep, but there is significant lethargy, a 'leaden' feeling, and a strong response to rejection-related issues.
• Psychotic depression, in which clinical depression co-exists with psychotic or delusional perceptions.

• Postnatal depression, depression following childbirth. Also known as 'Postpartum depression' or, usually when less severe, 'maternity blues' or 'baby blues'.

Other medical and biological uses

• Depression (physiology), a lowering, in particular a reduction in a biological variable or the function of an organ, antonym of elevation.
• Depression (kinesiology), an anatomical term of motion.

A depression is a sunken area, of any size, occurring in the ground or any other other surface: In everyday language depression refers to any downturn in mood, which may be relatively transitory and perhaps due to something trivial. ... On the Threshold of Eternity. ... Melancholic Depression, or depression with melancholic features is a subtype of depression characterized by the inability to find pleasure in positive things combined with physical agitation, insomnia, or decreased appetite. ... Atypical Depression (AD) is a subtype of Dysthymia and Major Depression characterized by mood reactivity — being able to experience improved mood in response to positive events. ... Psychotic depression is one of the most severe forms of the general depressive diseases in which the person experiences moments of delusional or paranoid being. ... After giving birth, about 70-80% of women experience an episode of baby blues, feelings of depression, anger, anxiety and guilt lasting for several days. ... The maternity baby blues, maternity blues or baby blues is a condition that 75-80% of mothers can experience after childbirth with a wide variety of symptoms which generally involve mild depression. ... Depression in physiology and medicine refers to a lowering, in particular a reduction in a particular biological variable or the function of an organ. ... Depression is the anatomical term of motion for movement in an inferior direction. ...

• Depression (geology), a sunken landform.

Or, more generally, an area or period of relative lowering:

• Depression (economics), a more severe economic downturn than a recession.

• The Great Depression, a severe economic recession in the 1930s.

• Depression (meteorology), an area of low atmospheric pressure.

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.

This article needs to be wikified. ... A landform comprises a geomorphological unit, and is largely defined by its surface form and location in the landscape, as part of the terrain, and as such, is typically an element of topography. ... WORLD OF WARCRAFT IS THE BEST GAME EVER INVENTED AND PLAY IT. IF YOU DONT PLAY WORLD OF WARCRAFT, YOU ARE A nOOb. ... In macroeconomics, a Recession is a decline in any countrys Gross Domestic Product (GDP), or negative real economic growth, for two or more successive quarters of a year. ... For other uses, see The Great Depression (disambiguation). ... In macroeconomics, a Recession is a decline in any countrys Gross Domestic Product (GDP), or negative real economic growth, for two or more successive quarters of a year. ... It has been suggested that this article or section be merged into cyclone. ... Image File history File links Disambig_gray. ...

Reference

"Psychedelic Therapy for the Treatment of Depression" Chapter 9 in Psychedelic Medicine: New Evidence for Hallucinogens as Treatment Michael Winkelman and Thomas B. Roberts (editors) (2007) Westport, CT: Praeger/Greenwood.