In a recent blog, I mentioned how my introversion can be a severe handicap in situations where I should be mingling. It is also the greatest threat to my mental health.

In 2003, I asked my Newsletter readers to take an online Myers-Briggs personality test and email the results, along with their diagnosis. When I analyzed the first 100 results I was astounded to find 83 percent of us were introverts. This sharply contrasts with the 25 percent to be found in the general population. What gives?

Jus...