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Sleep quality and memory function in healthy ageing.

T Cruz1, L García2, M A Álvarez3

  • 1Universidad Autónoma de Madrid, Madrid, España.

Neurologia
|April 16, 2019
PubMed
Summary
This summary is machine-generated.

Poor sleep quality in older adults is linked to worse memory performance. This highlights the importance of addressing sleep issues to support cognitive health in aging populations.

Keywords:
AgeingCognitive deficitDéficit cognitivoEnvejecimientoMemoriaMemorySleepSueño

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Area of Science:

  • Gerontology
  • Cognitive Neuroscience
  • Sleep Medicine

Background:

  • Age-related cognitive decline is a growing concern.
  • Sleep quality often deteriorates with age.
  • The impact of sleep on memory in healthy aging requires further investigation.

Purpose of the Study:

  • To investigate the association between sleep quality and memory function in healthy older adults.
  • To determine if poorer sleep quality correlates with impaired memory performance.

Main Methods:

  • 99 healthy participants over 50 years old completed memory tests (Word Learning, Visual Paired Associates) and the Pittsburgh Sleep Quality Index.
  • Digital assessments were used for memory and sleep quality evaluation.
  • Correlational analyses were performed to examine relationships between sleep parameters and cognitive performance.

Main Results:

  • A negative correlation was observed between Pittsburgh Sleep Quality Index scores and performance on both memory tests.
  • Worse sleep quality, shorter duration, and increased disturbances were associated with lower scores in memory assessments.
  • Subjective sleep quality and efficiency were linked to performance on the Word Learning test.

Conclusions:

  • Poor sleep quality significantly impacts memory performance in healthy aging individuals.
  • Cognitive impairment in the elderly may stem from disrupted circadian rhythms and neuroendocrine imbalances.
  • Healthcare providers should consider sleep quality as a factor in managing cognitive health in older patients.