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

Sex addiction is not classified as a mental health disorder. Jonathan Storey/Getty Images ...

Out-of-control sexual behaviors have existed throughout history, yet their official recognition only came much later. Some of the old terms you might have heard include satyriasis, nymphomania, and ...

Sex addiction is not a real addiction in the way drug and alcohol addictions are. Compulsive sexual behavior is a preoccupation with sexual thoughts, urges, and behaviors that disrupt daily life. To ...

A long-held view is that compulsive behaviors involve individuals getting stuck in a "habit loop" that overrides self-control, but new research in rats from the University of Technology Sydney (UTS) ...

Scientists at Karolinska Institutet in Sweden have discovered a specific brain circuit that triggers repetitive and compulsive behaviors, overriding natural rewards like food or social interaction. () ...

Is compulsive behavior common in people with Alzheimer’s or dementia? When someone is diagnosed with Alzheimer’s disease or dementia, many aspects of his or her life are forced to change and will ...