According to the National Institute of Mental Health or NIMH, nearly eight million individuals in the United States alone suffer from an anxiety disorder that is identified in the medical community as obsessive-compulsive disorder. The individuals counted in this staggering statistic are those that are at least eighteen years old and over.Many children and teenagers will start to show the symptoms associated with this anxiety disorder prior to reaching adulthood. However, there are many individuals that do not display the symptoms associated with OCD until they are an adult. In this mental health guide, you will learn important facts pertaining to this potentially disabling condition.