Sleep
Hypnic Jerk Awareness
Hypnic jerks are sudden muscle twitches at sleep onset—common and usually benign. Caffeine, stress, exercise too late, or irregular sleep can increase frequency.
Hypnic jerks are sudden muscle twitches at sleep onset—common and usually benign. Caffeine, stress, exercise too late, or irregular sleep can increase frequency.
They differ from periodic limb movements in sleep. Relaxation and stable schedule reduce nuisance jerks for most people.
Related terms
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