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Nightmares and Night Terrors01:18

Nightmares and Night Terrors

Nightmares and night terrors represent two distinct types of sleep disturbances that differ in timing, characteristics, and the sleeper's recall of the event. Nightmares are vivid, disturbing dreams that usually awaken the sleeper from REM sleep, a stage of sleep where brain activity is high, and dreams are most frequent. Upon awakening, individuals often have detailed recollections of their nightmares, which can include themes of threats to survival, security, or self-esteem.
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Insufficient Sleep and Sleep Deprivation01:13

Insufficient Sleep and Sleep Deprivation

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Sleep Apnea01:21

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Sleep-Wake Cycles01:24

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Related Experiment Video

Updated: Jul 2, 2026

Multi-Modal Home Sleep Monitoring in Older Adults
07:40

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Published on: January 26, 2019

Nocturia and disturbed sleep in the elderly.

Donald L Bliwise1, Daniel J Foley, Michael V Vitiello

  • 1Program in Sleep, Aging and Chronobiology, Emory University School of Medicine, Wesley Woods Center, Atlanta, GA 30329, USA. dbliwis@emory.edu

Sleep Medicine
|August 16, 2008
PubMed
Summary

Nocturnal urination (nocturia) frequently disrupts sleep in older adults. This common issue significantly increases the risk of insomnia and poor sleep quality in individuals over 55.

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Area of Science:

  • Gerontology
  • Sleep Medicine
  • Public Health

Background:

  • Nocturnal urination (nocturia) is a common issue among older adults.
  • It is often overlooked as a significant cause of sleep disturbances.

Purpose of the Study:

  • To examine the prevalence of nocturia.
  • To investigate the association between nocturia and self-reported insomnia and poor sleep quality in elderly individuals.

Main Methods:

  • A survey of 1424 individuals aged 55-84 was conducted.
  • Data were collected via a structured telephone interview from a 2003 National Sleep Foundation poll.
  • Analysis examined associations between nocturia and sleep quality metrics.

Main Results:

  • Nocturia was self-reported as a cause of sleep disturbance by 53% of participants.
  • Nocturia independently predicted self-reported insomnia (75% increased risk).
  • Nocturia independently predicted reduced sleep quality (71% increased risk).

Conclusions:

  • Nocturia is a prevalent and often underestimated cause of poor sleep in the elderly.
  • Targeted interventions for nocturia may improve sleep quality in older adults.