A systematic review found that traumatic childhood experiences (such as family conflict or sexual trauma) significantly increases the risk for a number of<unk> s in adulthood, including sleep apnea, narcolepsy, and insomnia. In addition, an evidence-based synopsis suggests that idiopathic REM sleep behavior disorder (iRBD) may have a hereditary component. A total of 632 participants, half with iRBD and half without, completed self-report questionnaires. The results of the study suggest that people with iRBD are more likely to report having a first-degree relative with the same<unk>  than people of the same age and sex that do not have the disorder. More research needs to be conducted to further understand the hereditary nature of<unk> s. A population susceptible to the development of<unk> s includes people who have experienced a traumatic brain injury (TBI). Because many researchers have focused on this issue, a systematic review was conducted to synthesize their findings. The results indicate that individuals who experienced a TBI are most disproportionately at risk for developing narcolepsy, obstructive sleep apnea, excessive daytime sleepiness, and insomnia. The study's complete findings can be found in the table below: Source of data Sleep variable Community TBI Community TBI Sleep category Nparticipants Nparticipants P P Z prob Healthy controls Sleep disturbance Overall 66 85 .32 .56 3.02 .003 Sleep problem Sleep initiation 77 77 .05 .41 5.33 <.001 Excessive daytime sleepiness 85 99 .10 .24 2.65 .008 Community samples Sleep disturbance Overall 2187 1706 .41 .50 5.59 <.001<unk> s Insomnia 1007 581 .10 .29 9.94 <.001 Hypersomnia 7954 212 .10 .28 8.38 <.001 Obstructive sleep apnoea 1741 283 .02 .25 15.51 <.001 Periodic limb movements 18,980 212 .04 .08 2.95 .003 Narcolepsy 18,980 152 .00b .04 17.11 <.001 Sleep problem Snoring 2629 65 .42 .60 3.56 <.001 Insomnia 6340 1001 .31 .50 11.8 <.001 Sleep maintenance 24,600 309 .27 .50 8.96 <.001 Sleep efficiency 1007 119 .27 .49 4.93 <.001 Sleep initiation 24,600 368 .27 .36 3.80 <.001 Nightmares 2187 133 .08 .27 7.43 <.001 Excessive daytime sleepiness 16,583 651 .09 .27 15.27 <.001 Early morning awakening 24,600 364 .18 .38 9.76 <.001 Sleepwalking 4972 99 .02 .09 4.85 <.001
Sleep disorder
Insomnia
Parasomnia
Cognitive disorder
Anxiety
Shift work sleep disorder
Sickness behavior
Circadian rhythm sleep disorder