For many people across Northeastern Kentucky, an afternoon nap is simply part of everyday life. After a morning of housework, tending the garden, running errands, or visiting with family, settling into a comfortable chair for a little rest might seem like the most natural thing in the world.
But what if changes in those daytime sleeping habits could reveal something important about the health of our brains?
A newly published study from researchers at Johns Hopkins University suggests that certain napping patterns among older adults may be associated with an increased likelihood of developing dementia later in life.
The findings are particularly relevant for older residents and their families throughout Rowan, Bath, Carter, Fleming, Morgan, Menifee, and surrounding Kentucky counties.
However, researchers emphasize one critical distinction: The study does not establish that taking naps causes dementia. Instead, frequent or unexpected daytime sleeping could sometimes be an early indication of changes occurring in the brain.
A Decade of Research Reveals an Interesting Connection
Researchers with the Johns Hopkins Bloomberg School of Public Health examined information collected from 995 Americans who were at least 65 years old when the study began in 2013.
None of the participants was classified as having dementia at the beginning of the research.
Using information from the National Health and Aging Trends Study, investigators followed participants for up to ten years, examining whether their daytime sleeping habits were associated with later cognitive decline.
Rather than focusing exclusively on how many hours people slept at night, researchers examined several aspects of daytime rest.
They wanted to know whether participants regularly took naps, how long those naps lasted, and whether people deliberately chose to rest or simply fell asleep without intending to.
The results revealed several noteworthy associations.
The Numbers That Caught Researchers' Attention
Older adults who reported napping most days or every day experienced a 48% higher relative risk of developing dementia than those who seldom or never napped.
Participants who unintentionally fell asleep during the day showed a 39% higher relative risk.
Another finding involved the length of daytime naps. Individuals reporting naps lasting 30 minutes or less had a 40% higher relative risk compared with people who did not nap.
Interestingly, the connection between longer naps and dementia became less clear once researchers accounted for other sleep-related factors.
There was also an important distinction between planned and unplanned rest. Infrequent napping and intentionally taking naps were not significantly associated with increased dementia risk in the researchers' adjusted analysis.
These percentages describe differences in relative risk between groups. They do not mean that nearly half of people who nap regularly will eventually develop dementia.
Could Napping Be a Warning Sign Rather Than the Problem?
Perhaps the most important question raised by this research is whether excessive daytime sleeping contributes to dementia or whether developing dementia contributes to excessive daytime sleeping.
Scientists do not yet know the answer.
The brain contains complex systems responsible for regulating sleep, alertness, and our daily patterns of wakefulness.
Changes affecting these systems may begin long before someone experiences the memory problems commonly associated with dementia.
As a result, an older person who begins falling asleep frequently during the day could potentially be experiencing an early change in brain function.
Researchers conducted an additional analysis excluding participants who developed dementia during the first five years of the study. The associations involving frequent and unintentional napping remained, suggesting these sleep patterns might precede recognizable dementia symptoms by several years.
That possibility makes the research especially interesting.
It suggests that physicians may eventually be able to use changes in sleeping habits as one additional clue when evaluating an older person's cognitive health.
However, additional research will be necessary before daytime napping patterns can be considered a reliable method of predicting dementia.
Why This Matters to Families in Northeastern Kentucky
Across our region, many older adults continue living independently or with relatives who help them manage everyday responsibilities.
Frequently, family members are the first to notice subtle changes in a loved one's behavior.
Perhaps Dad has started falling asleep in his recliner several times throughout the day, even though he previously remained active from morning until evening.
Maybe Mom, who always enjoyed getting up early and staying busy, suddenly seems unusually tired and begins dozing off during conversations or while watching television.
Such changes do not automatically indicate dementia.
There are numerous possible explanations for excessive sleepiness, including inadequate nighttime rest, sleep apnea, medication side effects, depression, and other medical conditions.
Nevertheless, a noticeable and persistent change in daytime alertness deserves attention.
The Johns Hopkins findings offer another reason for families to pay attention not only to memory problems but also to changes in ordinary daily routines.
In some circumstances, those routines could provide useful information about a person's overall health.
Does This Mean Older Adults Should Stop Taking Naps?
No.
The researchers did not conduct an experiment requiring participants to stop napping. Consequently, their findings cannot establish whether eliminating daytime naps would reduce anyone's risk of dementia.
There is an important difference between someone who occasionally enjoys a planned afternoon rest and someone who has recently begun falling asleep repeatedly without intending to.
A person who sleeps poorly at night might also experience daytime drowsiness for reasons entirely unrelated to dementia.
The research should not frighten older adults into avoiding rest when they genuinely need it.
Instead, it provides another reason to evaluate significant changes in sleeping habits, particularly when those changes are accompanied by other concerning symptoms.
Five Changes Families May Want to Discuss With a Doctor
While none of the following symptoms automatically means someone has dementia, they may warrant a medical evaluation:
A noticeable increase in daytime sleeping. Someone who rarely needed naps suddenly begins sleeping several times throughout the day.
Repeatedly falling asleep unintentionally. A loved one frequently dozes off during activities when they previously remained alert.
New or worsening memory problems. Forgetting important appointments, repeatedly asking the same questions, or experiencing unusual confusion.
Changes in personality or everyday functioning. Difficulty managing familiar tasks, increased disorientation, or behavior that is noticeably different from the person's usual habits.
Persistent fatigue despite adequate nighttime rest. Unexplained sleepiness that continues even when someone appears to be getting enough sleep.
These changes can have several possible causes, some of which are treatable.
A healthcare professional can help determine whether further testing, a medication review, or an evaluation for a sleep disorder is appropriate.
An Important Reminder About Dementia
Dementia is not a single disease. Rather, it is a term describing a collection of symptoms involving declines in memory, thinking, reasoning, or other cognitive abilities severe enough to interfere with independent daily life.
Alzheimer's disease is the most common cause, but several other conditions can produce dementia symptoms.
Although the likelihood of developing dementia increases with age, dementia itself is not considered a normal or inevitable part of growing older.
Early recognition of concerning symptoms can help families obtain medical evaluations, identify potentially treatable conditions, and make informed decisions about future care.
The Bottom Line for Our Readers
The latest research from Johns Hopkins University adds an interesting piece to the growing scientific understanding of dementia.
It suggests that changes in daytime sleeping patterns, especially frequent or unintentional napping, may sometimes appear years before dementia becomes recognizable.
But it does not prove that sleeping during the day damages the brain or that people who regularly enjoy an afternoon nap are destined to develop dementia.
For families throughout Morehead and Northeastern Kentucky, the practical message is simple:
Pay attention to changes in your loved ones' normal habits.
Sometimes the earliest indication that something needs medical attention is not a dramatic episode of confusion or memory loss.
It may be something far more ordinary, such as a person who suddenly seems to need considerably more sleep than before.
An occasional afternoon nap may be nothing more than a pleasant opportunity to rest.
A significant and unexplained change in daytime alertness, however, is worth discussing with a healthcare professional.
And when it comes to protecting the health and independence of our aging loved ones, recognizing those changes can make a meaningful difference.
Research and Source Information
This article is original reporting and educational commentary prepared for The Morehead Minute using the following published research:
Primary research: Jiang, K., et al. (2026). Napping Characteristics and Incident Dementia: Results From the National Health and Aging Trends Study. The Journals of Gerontology: Series A.
Institutional research summary: Johns Hopkins Bloomberg School of Public Health, October 13, 2026. Frequent and Unintentional Daytime Napping Linked to Higher Dementia Risk in Older Adults.
Medical disclaimer: This article is provided for general public education and should not be interpreted as medical advice, diagnosis, or treatment. Readers experiencing persistent changes in sleeping habits, memory, or cognitive function should consult a qualified healthcare professional.
© 2026 The Morehead Minute