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SEASONAL AFFECTIVE DISORDER

Specialty Definition: SEASONAL AFFECTIVE DISORDER

DomainDefinition

Health

A syndrome characterized by depressions that recur annually at the same time each year, usually during the winter months. Other symptoms include anxiety, irritability, decreased energy, increased appetite (carbohydrate cravings), increased duration of sleep, and weight gain. SAD (seasonal affective disorder) can be treated by daily exposure to bright artificial lights (phototherapy), during the season of recurrence. (references)

Medicine

Psychiatric disease caused by shorter days and longer nights, due to the reaction of the pineal gland to reduced sunlight. Source: European Union. (references)
 Psychiatric disease known as the "winter blues"; is caused by shorter days and longer nights; due to the reaction of the pineal gland to reduced sunlight. Source: European Union. (references)

Source: compiled by the editor from various references; see credits.

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Specialty Definition: Seasonal affective disorder

(From Wikipedia, the free Encyclopedia)

Seasonal Affective Disorder, or SAD, is a form of mood disorder or depression directly affected by the seasons. Sufferers of SAD find that their emotional state is quite normal during the summer months, but as the days grow shorter, colder and greyer during the autumn and winter, their moods seem to match the seasons. The seriousness of SAD can range from the mild ennui of dysthymia to a serious attack of clinical depression, which can require hospitalization.

It is believed that SAD is related to a lack of serotonin and that exposure to wide-spectrum artificial light may improve the condition by stimulating seratonin production. Light therapy appears to be effective in treating SAD, but the exact mechanism of the effect is still unknown.

One recent trial seemed to indicate that shining a bright light behind the sufferers' knees would be beneficial, but when the trial was duplicated on a larger scale, the results were negative.

External links

Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Seasonal affective disorder."

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Commercial Usage: SEASONAL AFFECTIVE DISORDER

DomainTitle

Books

  • Canadian Consensus Guidelines for the Treatment of Seasonal Affective Disorder (reference)

  • Seasonal Affective Disorder and Beyond: Light Treatment for Sad and Non-Sad Conditions (reference)

  • Don't Be Sad: Fight the Winter Blues-Your Guide to Conquering Seasonal Affective Disorder (reference)

  • If You Think You Have Seasonal Affective Disorder (A Dell Mental Health Guide) (reference)

  • Seasonal Affective Disorder (reference)

    (more book examples)

Source: compiled by the editor from various references; see credits.

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Expression: SEASONAL AFFECTIVE DISORDER

Expression using "SEASONAL AFFECTIVE DISORDER": Seasonal affective disorder (SAD). Additional references.

Source: compiled by the editor from various references; see credits.

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Frequency of Internet Keywords: SEASONAL AFFECTIVE DISORDER

The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com.
 
ExpressionFrequency
per Day

seasonal affective disorder

233

seasonal affective disorder light

4

seasonal affective disorder sad

3

depression seasonal affective disorder

3

seasonal affective disorder light therapy

2

seasonal affective disorder treatment

2
Source: compiled by the editor from various references; see credits.

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Modern Translation: SEASONAL AFFECTIVE DISORDER

Language Translations for "SEASONAL AFFECTIVE DISORDER"; alternative meanings/domain in parentheses.

French

  

trouble affectif saisonnier, dépression saisonnière, dépression de l'hiver. (various references)

   

German

  

jahreszeitlich bedingte mentale Störung. (various references)

   

Pig Latin

  

easonalsay affectiveay isorderday

   

Portuguese

  

depressão sazonal (winter blues), depressão periódica (winter blues). (various references)

Source: compiled by the editor from various translation references.

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INDEX

1. Usage: Commercial
2. Expressions
3. Expressions: Internet
4. Translations: Modern
5. Bibliography


  

Copyright © Philip M. Parker, INSEAD. Terms of Use.