Morbid obsessions with sex, germs, or with one's appearance, and uncontrollable compulsions to hoard objects, to check and recheck locks, or to chronically pull one's hair are just a few of the symptoms of obsessive-compulsive disorders, which afflict over ten million Americans today. Many suffer in isolation and shame, not knowing that their disorder has a name, how to seek help, or-most importantly-how to help themselves.

Dr. Fred Penzel discusses the entire spectrum of these disorders, from the classic form characterized by intrusive, repetitive, and often unpleasant thoughts, to body...