In 2001, Dance for Parkinson's Disease (DfPD), a collaboration between Brooklyn Parkinson Group (BPG) and Mark Morris Dance Group (MMDG), an internationally known company based in Brooklyn, began providing dance classes for the Parkinson community to train other teachers in the hopes of developing cognitive strategies and to enhance the sense of community and the amount of physical activity in PD population. Since then, positive effects of dance in motor and cognitive functions of people with PD have been reported from several types of dance classes.