We have updated our Privacy Policy Please take a moment to review it. By continuing to use this site, you agree to the terms of our updated Privacy Policy.

Running fifteen miles a day without being in training . . . taking two-hour showers and constantly changing clothes . . . working twelve hours a day, six days a week . . . these are obsessive-compulsive disorders. Now a world-renowned psychotherapist explains what they are, how they come about, and what can be done about them.