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Why do hypnic jerks make muscles twitch when falling asleep?
Medically reviewed by Arno Kroner, DAOM Key Takeaways Hypnic jerks are common, sudden muscle twitches that happen when you ...
Sleep Experts Explain Why , People Sometimes Jerk Awake , Just After Falling Asleep. CNN recently spoke with sleep experts about the common experience of falling asleep and suddenly waking with a ...
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