Study links sleep apnea to damage in brain areas critical for memory
- Researchers at the University of California Irvine, including neuroscientist Bryce A. Mander, published a study on May 7, 2025, in Neurology that identified a connection between sleep apnea and changes in the brains of older adults.
- Researchers investigated how obstructive sleep apnea causes oxygen drops during REM sleep, which may damage small blood vessels in brain regions key for memory.
- The study included 37 cognitively normal participants averaging 73 years old, 24 of whom had sleep apnea, and used brain scans and memory tests to assess impact.
- Results showed that oxygen saturation below 90% during REM sleep predicted white matter damage and shrinkage of the hippocampus and entorhinal cortex, affecting memory consolidation.
- Although causality remains unconfirmed, findings highlight that managing sleep apnea might reduce neurodegeneration risks associated with aging and cognitive decline.
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Sleep Apnea Linked To Memory-Related Brain Decline
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Study links sleep apnea to damage in brain areas critical for memory
Obstructive sleep apnea, a condition that causes lower oxygen levels during sleep, is linked to degeneration of brain regions associated with memory through damage to the brain's small blood vessels, according to a study published May 7, 2025, online in Neurology, the medical journal of the American Academy of Neurology.
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