What causes sudden jerks during sleep?
Disease description:
I've experienced something recently while sleeping at night: my body suddenly jerks while falling asleep. I'd like to ask the doctor, what causes the sudden body jerk during sleep?
Doctor's answer (1)
Dr. Huang Shichang
Sudden jerking during sleep, commonly referred to as "hypnic jerks" or "nocturnal myoclonus," is a common phenomenon that typically occurs when a person is about to fall asleep. The body suddenly and involuntarily twitches or jerks, sometimes accompanied by a brief sensation of fear or alarm. The following are possible causes:
1. Nervous system response: As the body transitions from wakefulness to deep sleep, the nervous system may briefly become disorganized, leading to sudden muscle contractions.
2. Fatigue and stress: Excessive fatigue or high levels of mental stress may increase the frequency of hypnic jerks.
3. Irregular sleep habits: Sleep deprivation or inconsistent sleep-wake schedules can also trigger this response.
4. Caffeine or stimulant intake: Caffeine and other stimulants, such as tobacco and alcohol, may disrupt normal sleep patterns and cause hypnic jerks.
If these occurrences are frequent or affect sleep quality, it is advisable to consult a doctor. If necessary, the doctor may recommend further evaluation or adjustments to medication therapy.
