New research analyzing 627 healthy adults found that REM sleep quality—specifically the active “phasic” phase—declines with age.
Women show a steeper decline in phasic REM percentage and rapid eye movement density compared to men, indicating faster age-related deterioration.
The study used polysomnography, the gold-standard method for tracking brain waves, eye movements and physiological signals during sleep.
Researchers suggest changes in REM sleep microstructure could serve as a biomarker for early detection of neurodegenerative and psychopathological disorders.
Evidence-informed strategies to protect REM sleep include consistent sleep schedules, limiting alcohol, managing stress and considering magnesium-based supplements.
What the new sleep research reveals
Read Full Article: https://www.naturalnews.com/2026-08-07-study-pinpoints-why-youre-tired-after-8-hours.html
