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What Is Stiff Person Syndrome?
Stiff person syndrome (SPS) is a rare neurological disorder ... Over time, stiffness can affect other muscles in the body, ...
Stiff person syndrome is a progressive ... but also in the shoulders, neck, and hips, according to the National Organization for Rare Disorders. With time, the leg muscles stiffen, with one ...
The syndrome can be defined as where the neck muscles become strained and stiff, causing long-term spinal complexities, the experts said. "Poor posture has become the most common cause of back and ...