Hyperactive Reflexes Overview

Hyperactive reflexes, or hyperreflexia, means that the body’s normal nervous reflexes are over-responding to stimuli, causing exaggerated reflexes. It refers to the involuntary nervous reflexes, not to the mind’s ability to react quickly (e.g. it does not refer to fast hand-eye coordination). The opposite is hyporeflexia, where the automatic nerve reflexes fail to respond adequately (under-active or absent reflexes).

Causes of hyperactive reflexes include nerve conditions, spinal cord disorders (e.g. MS), brain conditions (e.g. brain tumor, stroke, hemiplegia), systemic diseases (e.g. pernicious anemia), and neuromuscular diseases (e.g. ALS).

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