Beware the DSM-5, the soon-to-be-released fifth edition of the “psychiatric bible,” the Diagnostic and Statistical Manual. The odds will probably be greater than 50 percent, according to the new manual, that you’ll have a mental disorder in your lifetime.
Although fewer than 6 percent of American adults will have a severe mental illness in a given year, according to a 2005 study, many more–more than a quarter each year–will have some diagnosable mental disorder. That’s a lot of people. Almost 50 percent of Americans (46.4 percent to be exact) will have a diagnosable mental illness in their lifetimes, based on the previous edition, the DSM-IV. And the new manual will likely make it even “easier” to get a diagnosis.
If we think of having a diagnosable mental illness as being under a tent, the tent seems pretty big. Huge, in fact. How did it happen that half of us will develop a mental illness? Has this always been true and we just didn’t realize how sick we were–we didn’t realize we were under the tent? Or are we mentally less healthy than we were a generation ago? What about a third explanation–that we are labeling as mental illness psychological states that were previously considered normal, albeit unusual, making the tent bigger. The answer appears to be all three.