2. Trouble Sleeping
While it’s common for someone to experience trouble sleeping on occasion, if it occurs more often than not it may be a sign of Parkinson’s disease. Kicking, shouting or grinding one’s teeth while asleep may indicate a condition called rapid eye-movement behavior disorder (RBD).
RBD is particularly concerning because, according to the Northwest Parkinson’s Foundation, approximately 40 percent of those with RBD eventually develop Parkinson’s disease. The source adds that other sleep disorders like restless leg syndrome and sleep apnea are also common early indicators of Parkinson’s disease, often many years in advance.