A study co-authored by Yale University finds a link between problem gambling and obsessive-compulsive behaviors.
Over the years, it's been difficult for psychiatrists to classify problem gambling. It was once considered a impulse control disorder.
In the latest edition of the Diagnostic and Statistical Manual of Mental Disorders, problem gambling is classified as an addiction.
A new study by Yale University, St. Louis University, and the VA finds an overlap between problem gambling and obsessive compulsive behaviors.