4. Alternative Early Symptoms

Fewer than half of people with PSP exhibit the symptoms of the other three categories of PSP before the condition progresses. Atypical Parkinsonism describes a group of symptoms including a slow walking pace, erratic muscle rigidity, and sporadic tremors in the hands and other limbs. Corticobasal degeneration also includes muscle rigidity, but the most recognizable sign is loss of function in a single arm.

walking pace, tremors, muscle rigidity Nikola Ilic / Getty Images


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