1.   But does the depression cause the sleeplessness or sleeplessness the depression?

2.   But how might depression cause heart disease?

3.   Clinical depression can cause severe aches and pains, debilitating fatigue, chills and overheating, erratic sleep patterns and difficulty concentrating.

4.   Depression can also cause symptoms that are mistaken for ADHD.

5.   Does depression cause diabetes?

6.   Fiscal depression has caused personal depression.

7.   Elizabeth said her depression caused her to cut her arms with a razor.

8.   They said the researchers failed to consider, for instance, whether lower sexual activity was caused by depression which in turn was a symptom of disease.