| Low Vitamin D Tied to Depression in Older Adults |
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Low levels of vitamin D and high levels of a hormone secreted by the parathyroid glands may increase the risk of depression in older adults, according to a new report. The Dutch study, published in the May issue of Archives of General Psychiatry, supports previous speculation by researchers that vitamin D, depression and other psychiatric illnesses are linked, according to background information in the article. Underlying causes of vitamin D deficiency -- such as less sun exposure due to decreased outdoor activity, different housing or clothing habits, and decreased vitamin intake -- may be secondary to depression, but depression may also be the consequence of poor vitamin D status, the article's authors wrote. Moreover, poor vitamin D status causes an increase in serum parathyroid hormone levels. Read on
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