Depression (mood)

Depression
Lithograph of a person diagnosed with melancholia and strong suicidal tendency in 1892
SpecialtyPsychiatry, psychology
SymptomsLow mood, aversion to activity, loss of interest, loss of feeling pleasure
CausesBrain chemistry, genetics, life events, medical conditions, personality[1]
Risk factorsStigma of mental health disorder[2]
Diagnostic methodPatient Health Questionnaire, Beck Depression Inventory
Differential diagnosisAnxiety, bipolar disorder, borderline personality disorder
PreventionSocial connections, physical activity
TreatmentPsychotherapy, psychopharmacology

Depression is a mental state of low mood and aversion to activity.[3] It affects about 3.5% of the global population, or about 280 million people of all ages (as of 2020).[4] Depression affects a person's thoughts, behavior, feelings, and sense of well-being.[5] Experiences that would normally bring a person pleasure or joy give reduced pleasure or joy, and the afflicted person often experiences a loss of motivation or interest in those activities.[6]

Depressed mood is a symptom of some mood disorders, also categorized and called depression, such as major depressive disorder, bipolar disorder and dysthymia;[7] it is a normal temporary reaction to life events, such as the loss of a loved one; and it is also a symptom of some physical diseases and a side effect of some drugs and medical treatments. It may feature sadness, difficulty in thinking and concentration, or a significant increase or decrease in appetite and time spent sleeping. People experiencing depression may have feelings of dejection or hopelessness, and may experience suicidal thoughts. Depression can either be short term or long term.

  1. ^ "Depression". Cleveland Clinic. 2022. Retrieved 9 June 2022.
  2. ^ Shrivastava A, Bureau Y, Rewari N, Johnston M (April 2013). "Clinical risk of stigma and discrimination of mental illnesses: Need for objective assessment and quantification". Indian Journal of Psychiatry. 55 (2): 178–82. doi:10.4103/0019-5545.111459. PMC 3696244. PMID 23825855.
  3. ^ "Depression Basics". NIMH. 2016. Archived from the original on 11 June 2013. Retrieved 22 October 2020.
  4. ^ "Depression". www.who.int. Archived from the original on 26 December 2020. Retrieved 7 April 2021.
  5. ^ de Zwart PL, Jeronimus BF, de Jonge P (October 2019). "Empirical evidence for definitions of episode, remission, recovery, relapse and recurrence in depression: a systematic review". Epidemiology and Psychiatric Sciences. 28 (5): 544–562. doi:10.1017/S2045796018000227. PMC 7032752. PMID 29769159.
  6. ^ Gilbert P (2007). Psychotherapy and counselling for depression (3rd ed.). Los Angeles: Sage. ISBN 978-1-84920-349-4. OCLC 436076587.[page needed]
  7. ^ American Psychiatric Association (2013). Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5). American Psychiatric Association.[page needed]

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