Shaking hands

Tremor is a regular and repetitive involuntary body shake, which can occur throughout the body, but most of the limbs. The amplitude can be large or small, the speed can be fast or slow, generally between 10 to 10 times per second. Hand shake is divided into physiological hand shake and pathological hand shake: the amplitude of physiological hand shake is small and fast, and it often appears at rest, which is a small, fast, irregular shake; Medically called "tremor"; refers to the involuntary tremor of the hand, often permanent.

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