Andrew Luescher, director of Purdue's Animal Behavior Clinic and one of about 30 board certified animal behaviorists in the country, estimates that 2 percent of the dog population has canine ...

A decade-long debate seemed settled in June when the World Health Organization officially added “compulsive sexual behavior disorder” to the newest edition of the International Classification of ...

All mice groom themselves to keep their fur clean, but some in a lab in Columbia University, New York, have started grooming to an unusual and excessive degree. This isn’t vanity. Instead, it’s the ...

Although alcohol use is ubiquitous in modern society, only a portion of individuals develop alcohol use disorders or addiction. Yet, scientists have not understood why some individuals are prone to ...

When one friend is habitually the payer, others may feel grateful, indebted, infantilized, or even relieved. Over time, the pattern can, intentionally or unintentionally, produce moral leverage. The ...

Obsessive-compulsive disorder (OCD) is a complex psychological condition, and those who suffer from it experience severe reduction in their quality of life. A new study now shows that OCD sufferers ...

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 ...

Relationship Obsessive-Compulsive Disorder (ROCD) is a real manifestation of OCD where intrusive doubts and compulsions focus on romantic relationships and partners.