TL;DR
Get everyday helpers delivered free with Prime
- Fast, free delivery on millions of items
- Prime Video, Amazon Music and more included
- Member-only deals all year
A MedPage Today neurology roundup published October 20, 2026, reported three developments: unintentional napping was associated with possible or probable dementia, Nature issued an expression of concern about a 2017 autism paper, and researchers diagnosed former NASCAR driver Fred Lorenzen with stage 3 CTE after his death. The napping finding does not establish that naps cause dementia, and the available report does not explain the concerns raised about the paper or provide details of Lorenzen’s diagnosis.
A neurology roundup published October 20, 2026, reported three developments: unintentional napping was associated with a higher incidence of possible or probable dementia, Nature placed an expression of concern on a 2017 autism paper, and researchers diagnosed late NASCAR Hall of Famer Fred Lorenzen with stage 3 CTE. The items raise different questions about interpreting health research, scientific scrutiny and brain injuries in motorsports.
Data from the National Health and Aging Trends Study linked unintentional napping with a higher incidence of possible or probable dementia, according to the roundup. The report does not provide the study’s sample size, follow-up period, effect size or details about how napping and dementia were measured. The finding describes an association; it does not establish that napping causes dementia.
The roundup also said that Nature issued an editorial expression of concern about a highly cited 2017 paper. The paper proposed that bacteria in a mother’s gut promoted neurodevelopmental abnormalities in mice. An expression of concern signals that questions have been raised about a publication, but the source material does not identify the specific issues, state whether the paper’s findings have been withdrawn, or describe any resolution.
The Concussion & CTE Foundation announced that Boston University researchers diagnosed Lorenzen with stage 3 chronic traumatic encephalopathy. Lorenzen, a NASCAR Hall of Famer, died in 2024 at age 89. The announcement described him as the first NASCAR driver with a confirmed CTE diagnosis; the source does not provide details about the examination or the evidence used to reach the diagnosis.
Three Findings With Different Implications
The dementia finding may matter to older adults and clinicians because it identifies a behavior associated with later reports of possible or probable dementia. But the roundup supplies no data to show whether napping preceded cognitive changes, reflected other health conditions, or independently predicted dementia. Readers should not interpret the result as proof that sleeping during the day causes dementia or as a basis for changing care.
The expression of concern places a prominent autism-related paper under editorial scrutiny. Its practical meaning depends on the reasons behind the notice and any follow-up by the journal. The reported CTE diagnosis adds a documented case to discussion of repetitive head impacts in stock-car racing, but one diagnosis alone cannot establish how common CTE is among NASCAR drivers or quantify the sport’s risk.
As an affiliate, we earn on qualifying purchases.
Research, Review and Racing History
The three items appeared in a brief MedPage Today neurology and neuroscience roundup by Judy George, the publication’s deputy managing editor. They are separate developments, not results from a single study. The roundup also listed other neurology news, including studies on epilepsy and dementia, but did not offer detailed methods or findings for those reports.
CTE is a brain disease associated with repeated head impacts, but the source material here does not describe Lorenzen’s racing history, exposure to impacts or the diagnostic process. It says the diagnosis was made by Boston University researchers and announced by the Concussion & CTE Foundation. The report likewise gives no publication or editorial notice details beyond the journal, paper year and broad subject of the autism research.
“Boston University researchers diagnosed NASCAR Hall of Famer Fred Lorenzen with stage 3 chronic traumatic encephalopathy.”
— Concussion & CTE Foundation, as summarized by MedPage Today
adult unintentional napping pillow
As an affiliate, we earn on qualifying purchases.
As an affiliate, we earn on qualifying purchases.
Evidence Still Needs Detail
The source material does not provide the napping study’s methods, numerical results, participant characteristics or adjustment for other health factors. It also does not say whether the dementia outcome was independently confirmed or explain the distinction between possible and probable cases. Those details are needed to judge the strength and limits of the association.
For the autism paper, the specific basis for Nature’s concern, any response from the authors and whether the journal plans further action are not stated. For Lorenzen, the roundup does not describe the diagnostic evidence or explain the meaning of the stage 3 classification. It also does not provide data on other NASCAR drivers, so the reported designation should not be taken to mean no other drivers have experienced CTE.
dementia awareness educational book
As an affiliate, we earn on qualifying purchases.
As an affiliate, we earn on qualifying purchases.
Watch for Study and Journal Updates
Further reporting on the napping result would need to include the full study details, including its methods and effect estimates, before readers can assess how the association should inform research or clinical discussions. The report does not identify a scheduled follow-up publication or date.
For the Nature expression of concern, the next relevant development would be a fuller editorial explanation, an author response, or a correction or retraction if the journal decides one is warranted. No timetable is given. The source likewise reports no additional investigation or public release of diagnostic findings related to Lorenzen, so further information about the CTE diagnosis and its broader relevance remains pending.
brain health supplement for seniors
As an affiliate, we earn on qualifying purchases.
As an affiliate, we earn on qualifying purchases.
Key Questions
Does unintentional napping cause dementia?
No causal link is established by the report. It says unintentional napping was associated with a higher incidence of possible or probable dementia; it does not show that napping caused the condition.
What does an expression of concern about the autism paper mean?
It means Nature has flagged concerns about the 2017 paper. The available report does not explain the specific issues or say whether the paper has been corrected or retracted.
Who was diagnosed with CTE, and when did he die?
Fred Lorenzen, a NASCAR Hall of Famer, was diagnosed posthumously with stage 3 CTE by Boston University researchers. He died in 2024 at age 89.
Does Lorenzen’s diagnosis show how common CTE is in NASCAR?
No. The report identifies Lorenzen as the first NASCAR driver with a confirmed CTE diagnosis, but provides no broader data on prevalence or risk among NASCAR drivers.
Source: rss
Halloween Picks
halloween
As an affiliate, we earn on qualifying purchases.
