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By Amy Norton

NEW YORK (Reuters Health) – A lack of sunshine may cloud memory and other thinking or “cognitive” functions in some people with depression, a new study hints.

There is a well-known association between sunlight exposure and mood, the clearest example being seasonal affective disorder (SAD) — a form of depression in which symptoms shift with the seasons, usually arising in the late fall and winter and improving in sunnier months.

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© 2009 Reuters



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