Take a minute and answer this question: Is anyone really normal today?

I mean, even those who claim they are normal may, in fact, be the most neurotic among us, swimming with a nice pair of scuba fins down the river of Denial. Having my psychiatric file published online and in print for public viewing, I get to hear my share of dirty secrets—weird obsessions, family dysfunction, or disguised addiction—that are kept concealed from everyone but a self-professed neurotic and maybe a shrink.

“Why are there so many disorders today?” Those seven words, or a variation of them, surface a few times a week. And my take on this query is so complex that, to avoid sounding like my grad school professors making an erudite case that fails to communicate anything to average folks like me, I often shrug my shoulders and move on to a conversation about dessert. Now that I can talk about all day.

Here’s the abridged edition of my guess as to why we mark up more pages of the DSM-IV today than, say, a century ago (even though the DSM-IV had yet to be born).

People with Alzheimer’s disease often suffer not only from the debilitating effects of the disease itself, but also from the secondary psychological effects. Delusions and hallucinations appear in up to 50 percent of those with Alzheimer’s, and as many as 70 percent demonstrate aggressive behaviors and agitation. Both caregivers and family members are distressed by these symptoms, and so everyone is motivated to treat the person with Alzheimer’s with antipsychotic medications.

The problem?

Antipsychotic medications haven’t always been well-researched on older populations, and fewer still on people with a disease like Alzheimer’s. And when the research has been done, the results are often underwhelming.