Exploding head syndrome

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

## Contents

* 1 Overview
* 2 Etiology
* 3 Treatment
* 4 Other sleep phenomena
* 5 References

## Overview

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Exploding head syndrome is a condition that causes the sufferer to occasionally experience a tremendously loud noise as originating from within his or her own head, usually described as the sound of an explosion, roar, waves crashing against rocks, loud voices, or a ringing noise.

This noise usually occurs within an hour or two of falling asleep, but is not the result of a dream and can happen while awake as well. Perceived as extremely loud, the sound is usually not accompanied by pain. Attacks appear to change in frequency over time, with several attacks occurring in a space of days or weeks followed by months of remission. Sufferers often feel a sense of fear and anxiety after an attack, accompanied by elevated heart rate. Attacks are also often accompanied by perceived flashes of light (when perceived on their own, known as a "visual sleep start") or difficulty in breathing. The condition is also known as "auditory sleep starts." It is not thought to be dangerous, although it is sometimes distressing to experience.

## Etiology

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The cause of exploding head syndrome is not known, though some physicians have reported a correlation with stress or extreme fatigue. The condition may develop at any time during life and women are slightly more likely to suffer from it than men. Attacks can be one-time events, or can recur.

The mechanism is also not known, though possibilities have been suggested; one is that it may be the result of a sudden movement of a middle ear component or of the eustachian tube, another is that it may be the result of a form of minor seizure in the temporal lobe where the nerve cells for hearing are located. Electroencephalograms recorded during actual attacks show unusual activity only in some sufferers, and have ruled out epileptic seizures as a cause.[1]

Those who claim to be subject to Kundalini events occasionally report similar auditory phenomena.

## Treatment

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Symptoms may be resolved spontaneously over time. It may be helpful to reassure the patient that this symptom is harmless. Clomipramine has been used in three patients, who experienced immediate relief from this condition.[1]

## Other sleep phenomena

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* Bruxism \- grinding one's teeth while asleep
* Confusional arousals - appearing awake and confused or distressed while still asleep
* Hypnic jerk \- a sudden limb movement while falling asleep
* Rhythmic-movement disorder - repetitive movement of head and/or limbs
* Sleep Apnea \- stopping breathing during sleep
* Somnambulism \- sleepwalking
* Somniloquy \- talking in one's sleep
* Sleep paralysis \- The inability to move or call out when waking up or falling asleep

## References

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1. ↑ 1.0 1.1 Sachs, C (1991). "The exploding head syndrome: polysomnographic recordings and therapeutic suggestions". Sleep. 14 (3): 263–6. PMID 1896728. Unknown parameter `|coauthors=` ignored (help); Unknown parameter `|month=` ignored (help)

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