|  |  | July 30, 2009  Short days, winter skies and shadows of sunlight not only make you blue, limiting the amount of sunlight in your life may also affect how your brain works.
Investigators used weather data from satellites to measure sunlight exposure around the United States and linked this data to cognitive function in depressed people. Cognitive function of the brain describes how a person thinks and was assessed by measurement of short-term recall and how aware one was of where they were and what time it was, called temporal orientation.
According to research at Columbia University female gender, middle age (30 to 35), Native American race, low income, separation, divorce or widowhood increase the likelihood of current or lifetime major depressive disorder with 13% of the population of U.S. adults at risk for major depression at sometime in their life.
Shia Kent from the University of Alabama led the team of researchers investigating the effect of light and brain function in depressed individuals. He said, "We found that among participants with depression, low exposure to sunlight was associated with a significantly higher predicted probability of...
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