People often associate tremor with Parkinson’s disease (PD), a progressive neurodegenerative disorder originally named “shaking palsy,” but did you know that one-quarter to one-third of patients don’t exhibit this symptom? At Wednesday night’s event for Brain Awareness Week, “On the Mind: Parkinson’s, Movement, and Dance,” we heard from top NYU doctors about symptoms, diagnosis, and treatment, but also from a PD patient on his experience with disease and how dance helped him come to terms with his diagnosis.
There are four cardinal clinical features of PD: rest tremor, slowness, stiffness in muscles, and balance problems, said Andrew Feigin, M.D., director of the Fresco Institute at NYU Langone Health. Not everyone gets all four, he said, but people with Parkinsonism have two or more, and are often diagnosed with PD. Because it is a progressive disease, these symptoms can lead to other troubles, including quiet or slurred speech, difficulty swallowing, and shuffling gait, as well as non-motor features such as depression, impulse control, and sleep disturbances.
Actor Michael J. Fox and the late boxer Muhammad Ali, both diagnosed with PD, dramatically increased public awareness of the disease in the past few decades, but it was first discovered in the early 1800s by James Parkinson. Around 1 million people in the U.S. and 6 million people worldwide have PD.