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  2. History of depression - Wikipedia

    en.wikipedia.org/wiki/History_of_depression

    The term depression was derived from the Latin verb deprimere, "to press down". [12] From the 14th century, "to depress" meant to subjugate or to bring down in spirits. It was used in 1665 in English author Richard Baker's Chronicle to refer to someone having "a great depression of spirit", and by English author Samuel Johnson in a similar ...

  3. Evolutionary approaches to depression - Wikipedia

    en.wikipedia.org/wiki/Evolutionary_approaches_to...

    One reason depression is thought to be a pathology is that it causes so much psychic pain and distress. However, physical pain is also very distressful, yet it has an evolved function: to inform the organism that it is being damaged, to motivate it to withdraw from the source of damage, and to learn to avoid such damage-causing circumstances in the future.

  4. Depression (mood) - Wikipedia

    en.wikipedia.org/wiki/Depression_(mood)

    Depression can have multiple, sometimes overlapping, origins. Depression can be a symptom of some mood disorders, some of which are also commonly called depression, such as major depressive disorder, bipolar disorder and dysthymia. [7] Additionally, depression can be a normal temporary reaction to life events, such as the loss of a loved one.

  5. Mood disorder - Wikipedia

    en.wikipedia.org/wiki/Mood_disorder

    Family history, previous diagnosis of a mood disorder, trauma, stress or major life changes in the case of depression, physical illness or use of certain medications. Depression has been linked to major diseases such as cancer, diabetes, Parkinson's disease and heart disease, Brain structure and function in the case of bipolar disorder. [1 ...

  6. Behavioral theories of depression - Wikipedia

    en.wikipedia.org/wiki/Behavioral_theories_of...

    Depression is a significant mental illness with physiological and psychological consequences, including sluggishness, diminished interest and pleasure, and disturbances in sleep and appetite. [1] It is predicted that by the year 2030, depression will be the number one cause of disability in the United States and other high-income countries. [2]

  7. Recurrent brief depression - Wikipedia

    en.wikipedia.org/wiki/Recurrent_brief_depression

    The World Health Organization project on "Psychological problems in general health care", which was based on primary care samples, reported a one-year prevalence of 3.7 – 9.9%. However, none of these studies differentiate between RBD with and without a history of other mood disorders (e.g. major depression). DSM-IV field trial estimated the ...