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Published Study In Scientific Journal Points Out That The Delay In Reaching The REM Sleep Stage May Be Associated With Alzheimer, Serving As Early Warning
The Alzheimer’s, neurodegenerative disease affecting millions of people worldwide, may show subtle signs before the first clinical symptoms. A study published in the Alzheimer’s & Dementia journal revealed that the delay in reaching the REM sleep stage may be an early indicator of the condition, raising attention to the importance of sleep in prevention and early detection.
The research analyzed 123 participants with different levels of cognitive function. Among them, 64 had already been diagnosed with Alzheimer’s, 41 had mild cognitive impairment, and the rest maintained normal cognitive performance. All underwent polysomnography, which monitors sleep stages, and tests to identify biomarkers of the disease.
The results showed that individuals who took longer to reach REM sleep, a phase associated with dreams, learning, and memory consolidation, had a higher incidence of biomarkers linked to Alzheimer’s, suggesting that this characteristic could be used as a possible warning sign in medical evaluations.
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Relationship Between Sleep and Alzheimer
Researchers are still trying to understand the direct relationship between sleep patterns and the development of Alzheimer’s. Although people living with dementia frequently experience sleep disturbances, science is still investigating whether poor sleep can be a risk factor for the disease or merely a consequence of it.
Recent studies indicate a possible link. A November study indicated that 35% of individuals with poor sleep quality, who reported excessive daytime sleepiness, evolved into motor cognitive syndrome (MCR), a condition considered a precursor to dementia.
According to neurologist and sleep medicine specialist W. Christopher Winter, regular and quality sleep patterns may reduce the risk of cognitive decline. He recommends consistent bedtime and wake-up routines, avoiding caffeine in the afternoon, and maintaining regular physical activity.
How to Improve Sleep and Reduce Risks
While it is not possible to directly control which phases of sleep the body enters, maintaining good habits can favor complete and healthy cycles, increasing the chance of adequate REM sleep periods. Among medical guidelines are: establishing relaxing nighttime routines, avoiding excessive alcohol, exercising in the morning, and reducing visual stimuli before bed.
According to experts, it is also crucial to seek professional evaluation if there are persistent signs of insomnia, frequent awakenings, or daytime fatigue. A sleep study can help identify disorders like apnea and guide personalized treatments to protect brain health.
Despite advancements, science still does not know a guaranteed way to prevent Alzheimer’s, but the Centers for Disease Control and Prevention (CDC) recommend measures such as blood pressure control, diabetes management, prevention of hearing loss, and adoption of an active and smoke-free lifestyle.
This information was published by the scientific journal Alzheimer’s & Dementia and reported by international health portals, with statements from specialist W. Christopher Winter. Researchers emphasize that further studies are necessary to confirm the delay in REM sleep as an early marker of Alzheimer’s and to define how this discovery can be incorporated into medical protocols.
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