A neurological symptom involving extreme slowness of voluntary movement, often associated with Parkinson's disease.
From Greek 'bradys' (slow) + 'kinesis' (movement), literally 'slow movement'; standard medical terminology for motor dysfunction.
Bradykinesia is so characteristic of Parkinson's that neurologists watch for it as a diagnostic sign—a person with bradykinesia might take 30 seconds to button a shirt that would normally take 5 seconds, and this slowness affects every movement from walking to eating to blinking.
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