Obsessive-compulsive disorder (OCD) is characterized by repetitive, unwanted, intrusive thoughts (obsessions) and irrational, excessive urges to do certain actions (compulsions).

Some quirks can be chalked up to preference, but others can signal OCD. June 14, 2013— -- intro: Hooked on hand sanitizer? Closet organized to a T? Quirks like this can usually be chalked up to ...

Histrionic Personality Disorder is characterized by intense emotions and a strong need to be the center of attention. The disorder is part of a group known as cluster B personality disorders, similar ...