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According To Science, This Is Why You Jerk In Your Sleep
By Izza Sofia, 17 May 2017
Have you ever been woken up by a sudden jolt just as you are about to fall asleep? Or maybe, you felt like you were falling?
A hypnagogic jerk is an involuntary muscle spasm that occurs as a person is drifting off to sleep.
The muscle spasms may occur spontaneously or may be induced by sound or light. Some people report hypnagogic jerks accompanied by hallucinations, dreams, the sensation of falling, or bright lights.
These jerks are quite common, with some research suggesting that 60 to 70 percent of people experience them.
Some scientists believe certain factors, such as stress, anxiety, fatigue, caffeine and sleep deprivation, may increase the frequency or severity of hypnagogic jerks.
It is believed that hypnagogic jerks are a natural part of the body's transition from alertness to sleep, and occur when nerves “misfire” during the process. Another approach takes a more evolutionary approach to hypnic jerks, explaining that the spasms are an ancient primate reflex to the relaxation of muscles during the onset of sleep.
Read more about this on Lad Bible.
[via Lad Bible, opening image via Shutterstock]
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