Psychasthenia is a psychological disorder characterized by phobias, obsessions, compulsions, or excessive anxiety. The obsessions include recurrent unwanted thoughts that cause compulsions, including repetitive behaviors. Many individuals with TS may also develop obsessions, compulsions, inattention and hyperactivity. The DOCS is widely used in clinical research on the nature of obsessions and compulsions. The most common compulsions for people suffering from OCD are washing, and checking. Intrusive thoughts can occur with or without compulsions. Co-Dependents Anonymous () addresses compulsions related to relationships, referred to as codependency. She argues that this makes it difficult to override compulsions by exercising cognitive control. One of Zevon's compulsions was buying and hoarding identical gray Calvin Klein T-shirts. These compulsions also tend to leave abrasions and irritation on the skin. Paniker was "worried that his students might deviate from art due to financial compulsions". Different breeds of dog seem to display different compulsions. He is currently the bassist for the Michael Monroe band and The Compulsions. In 2011 Yaffa joined the American band The Compulsions. Fortus is a member (alongside Ferrer) of New York-based band The Compulsions.