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Insufficient Sleep and Sleep Deprivation01:13

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Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
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Cognitive development continues throughout adulthood, undergoing significant shifts across early, middle, and late stages. Individual transition occurs from adolescent idealism to pragmatic and adaptable thinking in early adulthood. During this period, individuals learn to integrate personal beliefs with the recognition that other perspectives are equally valid. Exposure to the complexities of modern society, diverse experiences, and higher education contribute to this adaptive thought process,...
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The sleep cycle, an integral part of human health, consists of several stages with distinct characteristics and functions. It begins with a transition from wakefulness to sleep, known as the light sleep phase, followed by the restorative deep sleep phase, essential for physical recovery and growth. The cycle concludes with the Rapid Eye Movement (REM) phase, characterized by high brain activity and vivid dreaming. Insomnia, a prevalent sleep disorder, involves difficulty falling asleep, staying...
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Insomnia is a prevalent sleep disorder characterized by difficulty falling asleep, frequent awakenings during the night, and waking up too early without being able to return to sleep. People with insomnia often experience these disruptions at least three nights a week for at least one month. Chronic insomnia, which lasts for at least three months, can lead to increased anxiety, which in turn can worsen sleep difficulties, creating a cycle of sleeplessness and stress.
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Decrease in daytime sleeping is associated with improvement in cognition after hospital discharge in older adults.

Joseph M Dzierzewski1, Constance H Fung, Stella Jouldjian

  • 1Geriatric Research, Education and Clinical Center, Veterans Affairs Greater Los Angeles Healthcare; David Geffen School of Medicine, University of California Los Angeles, USA.

Journal of the American Geriatrics Society
|August 6, 2014
PubMed
Summary

Reduced daytime sleep in older adults after hospital discharge was linked to improved cognitive function. This suggests daytime sleep could be a target for interventions to aid cognitive recovery.

Keywords:
cognitioninpatient hospitalizationlongitudinal changeolder adultssleep

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Area of Science:

  • Gerontology
  • Sleep Medicine
  • Cognitive Neuroscience

Background:

  • Cognitive decline is a concern in older adults post-hospitalization.
  • Sleep disturbances are common in this population.
  • The relationship between sleep changes and cognitive recovery needs further investigation.

Purpose of the Study:

  • To investigate the association between changes in objectively measured sleep patterns and global cognitive functioning.
  • To track these changes from inpatient rehabilitation to a 6-month follow-up period.

Main Methods:

  • Secondary analysis of two prospective, longitudinal studies involving 192 older adults (mean age 73.8).
  • Objective sleep assessment using wrist actigraphy for nighttime wakefulness and daytime sleep.
  • Cognitive function assessed using the Mini-Mental State Examination (MMSE).

Main Results:

  • A decrease in daytime sleep from inpatient rehabilitation to 6-month follow-up was significantly associated with improvements in MMSE scores (β = -0.01, P = .002).
  • Changes in nighttime wakefulness did not significantly predict changes in MMSE scores.
  • Analyses controlled for baseline age, education, sex, BMI, depression, pain, and comorbidity burden.

Conclusions:

  • Older adults experiencing a reduction in daytime sleep after hospital discharge showed enhanced cognitive functioning at 6 months.
  • Daytime sleep patterns may be a viable target for interventions designed to promote cognitive recovery post-discharge.