Movement disorders are
among the most challenging diseases to diagnose and treat. As neurological conditions, they affect the nervous system and disrupt normal motor control.
There are numerous types of movement disorders that cause different symptoms. They can either reduce or slow movement, or promote excessive or abnormal movement. Either way, they interfere with the way the body controls voluntary and involuntary motion.
In this gallery, we examine the 10 most common movements disorders, among them dystonia, chorea, and nystagmus. To learn more about these often distressing conditions, read on.