Depression and diabetes: fellow travelers, researchers say

Researchers have long known that type-2 diabetes and depression often go hand in hand. However, it's been unclear which condition develops first in patients who end up with both. Now, a new study led by Johns Hopkins doctors suggests that this chicken-and-egg problem has a dual answer: Patients with depression have an increased risk of developing type-2 diabetes, and patients with type-2 diabetes have an increased risk of developing depression.

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