A Hypnic Jerk Or Sleep Twitch Is A Brief And Sudden Involuntary Contraction

Liam Miller

A Hypnic Jerk Or Sleep Twitch Is A Brief
Psychology Fact
A hypnic jerk or sleep twitch is a brief and sudden involuntary contraction of the muscles of the body. It occurs when a person is beginning to fall asleep, often causing the person to jump and awaken suddenly for a moment.

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Liam Miller

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