. . "Previous studies have shown that anorexia is a diagnosis with a very poor ...Addiction: Insights from Parkinson's disease... instances Parkinson's disease (PD) patients become addicted to their own medication, or develop behavioural addictions such as pathological gambling, compulsive shopping or hypersexuality, says Dr. Alain Dagher, neurologist at the MNI and co-author of the review." . .