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  2. Depressive disorder not otherwise specified - Wikipedia

    en.wikipedia.org/wiki/Depressive_Disorder_Not...

    "Depression" refers to a spectrum of disturbances in mood that vary from mild to severe and from short periods to constant illness. [1] DD-NOS is diagnosed if a patient's symptoms fail to meet the criteria more common depressive disorders such as major depressive disorder or dysthymia. Although DD-NOS shares similar symptoms to dysthymia ...

  3. Recurrent brief depression - Wikipedia

    en.wikipedia.org/wiki/Recurrent_brief_depression

    Recurrent brief depression (RBD) defines a mental disorder characterized by intermittent depressive episodes, not related to menstrual cycles in women, occurring between approximately 6–12 times per year, over at least one year or more fulfilling the diagnostic criteria for major depressive episodes (DSM-IV and ICD-10) except for duration in which RBD is less than 14 days (typically 5–7 ...

  4. Endogenous depression - Wikipedia

    en.wikipedia.org/wiki/Endogenous_depression

    Endogenous depression is an atypical subclass of major depressive disorder (clinical depression). It could be caused by genetic and biological factors. [ 1 ] Endogenous depression occurs due to the presence of an internal (cognitive, biological) stressor instead of an external (social, environmental) stressor. [ 2 ]

  5. Major depressive episode - Wikipedia

    en.wikipedia.org/wiki/Major_depressive_episode

    [12] [13] [14] One interpretation is that depression manifests due to an imbalance of neurotransmitters in the brain, resulting in feelings of worthlessness and despair. Magnetic resonance imaging shows that the brains of people diagnosed with depression may have a hippocampus up to 10% smaller than those who do not exhibit signs of depression.

  6. Classification of mental disorders - Wikipedia

    en.wikipedia.org/wiki/Classification_of_mental...

    The International Classification of Diseases (ICD) is an international standard diagnostic classification for a wide variety of health conditions. The ICD-10 states that mental disorder is "not an exact term", although is generally used "...to imply the existence of a clinically recognisable set of symptoms or behaviours associated in most cases with distress and with interference with ...

  7. Major depressive disorder - Wikipedia

    en.wikipedia.org/wiki/Major_depressive_disorder

    This article needs to be updated. The reason given is: Many outdated sources and information (older than five years). Please help update this article to reflect recent events or newly available information. (July 2024) Medical condition Major depressive disorder Other names Clinical depression, major depression, unipolar depression, unipolar disorder, recurrent depression Sorrowing Old Man (At ...

  8. Masked depression - Wikipedia

    en.wikipedia.org/wiki/Masked_depression

    ] Ukrainian psychiatrists claim that MD is to be qualified as "depression with somatic symptoms" in the ICD-10 (F 3x.01). [17] This means that those who struggle with masked depression often have more physical symptoms such as back pain, abdominal pain, headaches, and even pain during sexual activity or painful periods.

  9. Late life depression - Wikipedia

    en.wikipedia.org/wiki/Late_life_depression

    Late-life depression is often underdiagnosed, which is due to numerous reasons, including that depressed mood is commonly not as prominent as other somatic and psychotic symptoms such as loss of appetite, disruptions in sleep, lack of energy or anergia, fatigue, and loss of interest and enjoyment in normal life activities.