Specialists have a number of theories concerning the causes of EHS. As an example, one prevailing idea is that stress and excessive fatigue play a task in EHS (per Healthline). These episodes usually emerge throughout moments of heightened stress or exhaustion.
A 2020 research in Sleep Drugs Critiques proposes that EHS could consequence from hyperactivity within the auditory cortex, the mind area chargeable for sound processing. This hyperactivity could be triggered by stress, sleep deprivation, or different elements. EHS episodes regularly manifest through the sleep-wake transition, implying potential connections to disruptions within the mind’s sleep-wake cycle.
EHS usually coexists with different sleep issues like insomnia and sleep paralysis, in addition to psychiatric circumstances corresponding to anxiousness and melancholy. EHS has additionally been reported as a facet impact of sure medicines, together with antidepressants and benzodiazepines. Some people with EHS exhibit internal ear issues (per Cleveland Clinic). Sudden shifts or disturbances within the center ear could contribute to the notion of loud noises throughout sleep onset.
A 2021 report in Case Studies in Neurology reinforces the hyperlink between EHS and different sleep issues, corresponding to insomnia and sleep paralysis, and circumstances like anxiousness and melancholy, suggesting their potential affect on EHS growth. Moreover, there’s some proof to recommend a genetic element in EHS, with experiences of its incidence inside households.