Lack of sunshine can make some people depressed

May 13, 2010 2:08:28 PM PDT
A new study finds older men and women with lower levels of vitamin D in their blood are more prone to become depressed over time.

Scientists with the National Institute on Aging found that 72 percent of depressed people and 60 percent of those who did not suffer from depression had insufficient levels of vitamin D.

Those with low vitamin D who weren't depressed at the beginning of the study were also twice as likely to become depressed over the following six years.

Authors say the study suggests preventing vitamin D deficiency may become a strategy in the development of treating depression in the elderly.