Depressed? Psychotic? The culprit could be a physical condition

Imagine believing you suffer from depression, only to find out it’s actually a side effect of your blood pressure pills. Or thinking you have anxiety, when what you really have is a thyroid condition.

According to Harvard psychiatrist Barbara Schildkrout, there are more than 100 medical disorders that can be mistaken for psychological conditions. She tells The Wall Street Journal that even experienced clinicians can have a hard time determining when one causes the other, and since busy primary-care doctors and psychiatrists spend so little time with patients, the risk of misdiagnosis is all the greater.