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Psychiatry101 papers

Seasonal affective disorder

Last edited: 4/14/2026

Overview

Seasonal Affective Disorder (SAD) is a type of depression that follows a seasonal pattern, typically manifesting in fall or winter and remitting in spring or summer 113.

Diagnosis

  • Seasonal Pattern: Depressive symptoms recurring annually at the same time each year 1.
  • Symptom Criteria: Includes fatigue, hypersomnia, overeating, weight gain, social withdrawal, and difficulty concentrating 1.
  • Differential Diagnosis: Rule out other depressive disorders and circadian rhythm disorders 1.
  • Recommended Tests: No specific laboratory tests; clinical assessment is key 1.
  • Management

  • First-Line Treatments:
  • - Phototherapy: Bright light therapy for several hours daily, effective in alleviating depressive symptoms 11321. - Antidepressants: Selective serotonin reuptake inhibitors (SSRIs) are commonly used 1.
  • Adjunctive Treatments:
  • - Cognitive-Behavioral Therapy (CBT): Can be beneficial as a supportive therapy 1. - Nutritional Interventions: Further investigation needed, particularly carbohydrate consumption 5.

    Special Populations

  • Elderly: Considerations for polypharmacy and potential interactions with existing psychotropic medications 3.
  • Comorbidities: No specific guidance provided in abstracts; manage based on individual comorbidities 3.
  • Key Recommendations

  • Use Phototherapy as First-Line Treatment: Bright light therapy is effective for managing SAD symptoms (Evidence: Strong 11321).
  • Consider SSRIs for Treatment Resistance: When phototherapy is ineffective or not tolerated, SSRIs can be a viable alternative (Evidence: Moderate 1).
  • Integrate CBT for Symptom Management: Cognitive-behavioral therapy can enhance treatment outcomes when used adjunctively (Evidence: Moderate 1).
  • Monitor for Comorbid Conditions: Especially in elderly patients, closely monitor for interactions with existing medications (Evidence: Expert opinion 3).
  • References

    1 Chen ZW, Zhang XF, Tu ZM. Treatment measures for seasonal affective disorder: A network meta-analysis. Journal of affective disorders 2024. link 2 Hanna KJ, Agnieszka KP, Michal D, Dariusz J, Izabela D, Agata M et al.. Affective disorders as potential complication of anti-acne treatment with isotretinoin: A case series. Journal of affective disorders 2016. link 3 Tveito M, Bramness JG, Engedal K, Lorentzen B, Refsum H, Høiseth G. Psychotropic medication in geriatric psychiatric patients: use and unreported use in relation to serum concentrations. European journal of clinical pharmacology 2014. link 4 Bremner JD, Shearer KD, McCaffery PJ. Retinoic acid and affective disorders: the evidence for an association. The Journal of clinical psychiatry 2012. link 5 Palinkas LA. Nutritional interventions for treatment of seasonal affective disorder. CNS neuroscience & therapeutics 2010. link 6 Postolache TT, Oren DA. Circadian phase shifting, alerting, and antidepressant effects of bright light treatment. Clinics in sports medicine 2005. link 7 Bushnell FK, DeForge V. Seasonal affective disorder. Perspectives in psychiatric care 1994. link 8 Heleniak EP. Seasonal affective disorder: lower or raised resting metabolic rate?. Medical hypotheses 1993. link90220-k) 9 Ramana R, Paykel ES. Classification of affective disorders. British journal of hospital medicine 1992. link 10 Wolfe ML. Nursing students' anticipation of experiencing symptoms of seasonal affective disorder. Perceptual and motor skills 1990. link 11 Pössl J, von Zerssen D. A case history analysis of the "manic type" and the "melancholic type" of premorbid personality in affectively ill patients. European archives of psychiatry and neurological sciences 1990. link 12 Cooper SJ, Scott AI, Whalley LJ. A neuroendocrine view of ECT. The British journal of psychiatry : the journal of mental science 1990. link 13 Murray JB. Geophysical variables and behavior: LVII. Seasonal affective disorder and phototherapy. Psychological reports 1989. link 14 Garvey MJ, Tollefson GD. Association of affective disorder with migraine headaches and neurodermatitis. General hospital psychiatry 1988. link90102-8) 15 Kurtz LF. Mutual aid for affective disorders: the manic depressive and depressive association. The American journal of orthopsychiatry 1988. link 16 Gupta R. Alternative patterns of seasonal affective disorder: three case reports from north India. The American journal of psychiatry 1988. link 17 Taylor J, Kreeger A. Recurrent pseudocyesis and hypomania. The British journal of psychiatry : the journal of mental science 1987. link 18 Wehr TA, Sack DA, Rosenthal NE. Seasonal affective disorder with summer depression and winter hypomania. The American journal of psychiatry 1987. link 19 Joffe RT, Blank DW, Berrettini WH, Post RM. Erythrocyte sodium and potassium in affective illness. Acta psychiatrica Scandinavica 1986. link 20 Balgir RS. Serological markers in unipolar and bipolar affective disorders. Human heredity 1986. link 21 Hellekson CJ, Kline JA, Rosenthal NE. Phototherapy for seasonal affective disorder in Alaska. The American journal of psychiatry 1986. link 22 Roy A. Family history of suicide in affective disorder patients. The Journal of clinical psychiatry 1985. link 23 Verberne TJ. Do anorexics and schizophrenics look alike on the MMPI? A critique. Journal of clinical psychology 1984. link40:6<1433::aid-jclp2270400628>3.0.co;2-9) 24 Roy A. Suicide in recurrent affective disorder patients. Canadian journal of psychiatry. Revue canadienne de psychiatrie 1984. link 25 Balgir RS. Dermatoglyphic studies in affective disorders: an appraisal. Biological psychiatry 1982. link 26 Dvoredsky AE, Stewart MA. Hyperactivity followed by manic-depressive disorder: two case reports. The Journal of clinical psychiatry 1981. link 27 Verbanck PM, Mendlewicz J. Cell membrane anomaly in genetically determined manic-depressive illness. Neuropsychobiology 1981. link 28 Abrahamson D. The borderline syndrome and affective disorders: a comment on the Wolf-man. Schizophrenia bulletin 1980. link 29 Jamison KR, Gerner RH, Hammen C, Padesky C. Clouds and silver linings: positive experiences associated with primary affective disorders. The American journal of psychiatry 1980. link 30 Negri F, Melica AM, Zuliani R, Smeraldi E. Assortative mating and affective disorders. Journal of affective disorders 1979. link90011-9) 31 Lykouras E, Garelis E, Varsou E, Stefanis CN. Physical activity and plasma cyclic adenosine monophosphate levels in manic-depressive patients and healthy adults. The American journal of psychiatry 1979. link 32 Greene BL, Lustig N, Lee RR. Marital therapy when one spouse has a primary affective disorder. The American journal of psychiatry 1976. link 33 Perris C. The bipolar unipolar dichotomy and the need for a consistent terminology. Neuropsychobiology 1975. link

    Original source

    1. [1]
      Treatment measures for seasonal affective disorder: A network meta-analysis.Chen ZW, Zhang XF, Tu ZM Journal of affective disorders (2024)
    2. [2]
      Affective disorders as potential complication of anti-acne treatment with isotretinoin: A case series.Hanna KJ, Agnieszka KP, Michal D, Dariusz J, Izabela D, Agata M et al. Journal of affective disorders (2016)
    3. [3]
      Psychotropic medication in geriatric psychiatric patients: use and unreported use in relation to serum concentrations.Tveito M, Bramness JG, Engedal K, Lorentzen B, Refsum H, Høiseth G European journal of clinical pharmacology (2014)
    4. [4]
      Retinoic acid and affective disorders: the evidence for an association.Bremner JD, Shearer KD, McCaffery PJ The Journal of clinical psychiatry (2012)
    5. [5]
      Nutritional interventions for treatment of seasonal affective disorder.Palinkas LA CNS neuroscience & therapeutics (2010)
    6. [6]
      Circadian phase shifting, alerting, and antidepressant effects of bright light treatment.Postolache TT, Oren DA Clinics in sports medicine (2005)
    7. [7]
      Seasonal affective disorder.Bushnell FK, DeForge V Perspectives in psychiatric care (1994)
    8. [8]
    9. [9]
      Classification of affective disorders.Ramana R, Paykel ES British journal of hospital medicine (1992)
    10. [10]
    11. [11]
      A case history analysis of the "manic type" and the "melancholic type" of premorbid personality in affectively ill patients.Pössl J, von Zerssen D European archives of psychiatry and neurological sciences (1990)
    12. [12]
      A neuroendocrine view of ECT.Cooper SJ, Scott AI, Whalley LJ The British journal of psychiatry : the journal of mental science (1990)
    13. [13]
    14. [14]
      Association of affective disorder with migraine headaches and neurodermatitis.Garvey MJ, Tollefson GD General hospital psychiatry (1988)
    15. [15]
      Mutual aid for affective disorders: the manic depressive and depressive association.Kurtz LF The American journal of orthopsychiatry (1988)
    16. [16]
    17. [17]
      Recurrent pseudocyesis and hypomania.Taylor J, Kreeger A The British journal of psychiatry : the journal of mental science (1987)
    18. [18]
      Seasonal affective disorder with summer depression and winter hypomania.Wehr TA, Sack DA, Rosenthal NE The American journal of psychiatry (1987)
    19. [19]
      Erythrocyte sodium and potassium in affective illness.Joffe RT, Blank DW, Berrettini WH, Post RM Acta psychiatrica Scandinavica (1986)
    20. [20]
    21. [21]
      Phototherapy for seasonal affective disorder in Alaska.Hellekson CJ, Kline JA, Rosenthal NE The American journal of psychiatry (1986)
    22. [22]
      Family history of suicide in affective disorder patients.Roy A The Journal of clinical psychiatry (1985)
    23. [23]
      Do anorexics and schizophrenics look alike on the MMPI? A critique.Verberne TJ Journal of clinical psychology (1984)
    24. [24]
      Suicide in recurrent affective disorder patients.Roy A Canadian journal of psychiatry. Revue canadienne de psychiatrie (1984)
    25. [25]
      Dermatoglyphic studies in affective disorders: an appraisal.Balgir RS Biological psychiatry (1982)
    26. [26]
      Hyperactivity followed by manic-depressive disorder: two case reports.Dvoredsky AE, Stewart MA The Journal of clinical psychiatry (1981)
    27. [27]
      Cell membrane anomaly in genetically determined manic-depressive illness.Verbanck PM, Mendlewicz J Neuropsychobiology (1981)
    28. [28]
    29. [29]
      Clouds and silver linings: positive experiences associated with primary affective disorders.Jamison KR, Gerner RH, Hammen C, Padesky C The American journal of psychiatry (1980)
    30. [30]
      Assortative mating and affective disorders.Negri F, Melica AM, Zuliani R, Smeraldi E Journal of affective disorders (1979)
    31. [31]
      Physical activity and plasma cyclic adenosine monophosphate levels in manic-depressive patients and healthy adults.Lykouras E, Garelis E, Varsou E, Stefanis CN The American journal of psychiatry (1979)
    32. [32]
      Marital therapy when one spouse has a primary affective disorder.Greene BL, Lustig N, Lee RR The American journal of psychiatry (1976)
    33. [33]

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