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The naturally weak daylight during [[winter]] at extreme latitudes causes winter [[depression]]. Also, weaker [[electrical]] activity is found in the retinas of depressed people, which gives them poor [[visual]] [[contrast]] so that they see the world in grey, depressing hues. A solarium or other source of bright light may be used as light [[therapy]] to treat this.[http://en.wikipedia.org/wiki/Gloom]
 
The naturally weak daylight during [[winter]] at extreme latitudes causes winter [[depression]]. Also, weaker [[electrical]] activity is found in the retinas of depressed people, which gives them poor [[visual]] [[contrast]] so that they see the world in grey, depressing hues. A solarium or other source of bright light may be used as light [[therapy]] to treat this.[http://en.wikipedia.org/wiki/Gloom]
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==See also==
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*'''''[[Doom]]'''''
    
[[Category: Physiology]]
 
[[Category: Physiology]]
 
[[Category: Psychology]]
 
[[Category: Psychology]]

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