(Press-News.org) About The Study: In this cohort study of adults in the Framingham Heart Study Offspring cohort, higher levels of midlife and late-life physical activity were associated with similar reductions in risk of all-cause and Alzheimer disease dementia. These findings may inform future efforts to delay or prevent dementia through timing interventions during the most relevant stages of the adult life course.
Corresponding Author: To contact the corresponding author, Phillip H. Hwang, PhD, MPH, email phhwang@bu.edu.
To access the embargoed study: Visit our For The Media website at this link https://media.jamanetwork.com/
(doi:10.1001/jamanetworkopen.2025.44439)
Editor’s Note: Please see the article for additional information, including other authors, author contributions and affiliations, conflict of interest and financial disclosures, and funding and support.
# # #
Embed this link to provide your readers free access to the full-text article This link will be live at the embargo time https://jamanetwork.com/journals/jamanetworkopen/fullarticle/10.1001/jamanetworkopen.2025.44439?guestAccessKey=1b34668e-afe8-4888-aa3d-dd05b3b83eff&utm_source=for_the_media&utm_medium=referral&utm_campaign=ftm_links&utm_content=tfl&utm_term=111925
About JAMA Network Open: JAMA Network Open is an online-only open access general medical journal from the JAMA Network. On weekdays, the journal publishes peer-reviewed clinical research and commentary in more than 40 medical and health subject areas. Every article is free online from the day of publication.
END
Physical activity over the adult life course and risk of dementia in the Framingham heart study
JAMA Network Open
2025-11-19
ELSE PRESS RELEASES FROM THIS DATE:
Trends in prevalence of adverse childhood experiences among children
2025-11-19
About The Study: This cross-sectional study reveals an encouraging positive shift in the prevalence of adverse childhood experiences (ACEs) among U.S. children during the study period of 2016 to 2023. The upward trends in the proportion of individuals reporting 0 ACEs suggest a growing societal recognition of the importance of healthy and nurturing environments for children. Conversely, the decrease in the prevalence of 4 or more ACEs highlights a reduction in severe ACEs, particularly among other racial and ethnic groups and those from low-income families.
Corresponding Author: To contact the corresponding ...
Surface-only superconductor is the strangest of its kind
2025-11-19
Something strange goes on inside the material platinum-bismuth-two (PtBi₂). A new study by researchers at IFW Dresden and the Cluster of Excellence ct.qmat demonstrates that while PtBi₂ may look like a typical shiny grey crystal, electrons moving through it do some things never seen before.
In 2024, the research team demonstrated that the top and bottom surfaces of the material superconduct, meaning electrons pair up and move without resistance. Now, they reveal that this pairing works differently from any superconductor ...
Stereotactic radiosurgery for craniopharyngioma management
2025-11-19
Craniopharyngiomas account for 2–5% of all primary brain tumors and 5–10% of pediatric brain tumors. Despite their benign histology, their location near the hypothalamus, pituitary gland, and optic pathways complicates management. Gross total resection, while effective, carries high risks of visual, endocrine, and hypothalamic dysfunction. Adjuvant radiotherapy after subtotal resection offers comparable control with fewer complications, but conventional fractionated radiotherapy is associated with long-term risks such as cognitive decline, secondary malignancies, and ...
Study questions water safety beliefs
2025-11-19
PULLMAN, Wash. – A Washington State University-led study in Guatemala found the sources of drinking water people believe to be safe and clean often contain potentially dangerous bacteria.
Focusing on the Western Highlands region of Guatemala, researchers examined how community perceptions of water safety compared with actual water quality. While residents overwhelmingly believed bottled water sold in large refillable jugs to be the safest option for drinking, researchers found that of 11 water sources tested it was the most frequently contaminated with coliform bacteria – an indicator of fecal contamination. ...
Bacteria ‘pills’ could detect gut diseases — without the endoscope
2025-11-19
Move over, colonoscopies — researchers report in ACS Sensors that they’ve developed a sensor made of tiny microspheres packed with blood-sensing bacteria that detect markers of gastrointestinal disease. Taken orally, the miniature “pills” also contain magnetic particles that make them easy to collect from stool. Once excreted from mouse models with colitis, the bacterial sensor detected gastrointestinal bleeding within minutes. The researchers say the bacteria in the sensor could be adapted to detect other gut diseases.
“This ...
National Cancer Institute grants support efforts to understand how fluid flow drives deadly brain cancer
2025-11-19
Jennifer Munson, a cancer researcher at Virginia Tech's Fralin Biomedical Research Institute at VTC, has been awarded two new National Institutes of Health grants to advance greater understanding and improved treatment of a deadly brain cancer.
While the grants from the National Cancer Institute fund different projects, both involve identifying how the movement of fluid surrounding tumor cells contributes to the spread of glioblastoma, a deadly brain tumor, into neighboring brain areas, allowing the cancer to return after surgery or radiation.
Munson and her team are identifying how liquid called interstitial fluid moves between ...
New global satellite dataset for humanitarian routing and tracking infrastructure change
2025-11-19
While many global road maps exist, few include detailed surface information or keep pace with rapid infrastructure change. The new HeiGIT dataset closes this gap by combining 3–4 meter resolution PlanetScope imagery (2020–2024) with deep-learning models to analyze 9.2 million kilometers of major transport routes connecting cities and rural regions. The result is a high-accuracy global classification (89.2%), outperforming widely used open datasets by over 20 percentage points.
A central component of the dataset is the Humanitarian Passability Score — an index that combines surface type and ...
Australia’s middle-aged are the engine room of the nation but many risk burnout: Report
2025-11-19
Middle-aged Australians are keeping the country running - but it’s taking a hefty toll on their wellbeing, a new report shows.
‘A Balancing Act: Life, work and connection in the middle years’, the latest report by the Bankwest Curtin Economics Centre, finds Australians aged 35 to 55 are facing mounting pressures as they balance work, family and financial demands, with life satisfaction dipping to its lowest point in midlife.
Report lead and co-author Dr Daniel Kiely from the Bankwest Curtin Economics Centre, said while people ...
Why top firms paradoxically fire good workers
2025-11-19
Why do the world’s most prestigious firms—such as McKinsey, Goldman Sachs and other elite consulting giants, investment banks, and law practices—hire the brightest talents, train them intensively, and then, after a few years, send many of them packing? A recent study in the American Economic Review concludes that so-called adverse selection is not a flaw but rather a sign that the system is working precisely as intended.
Two financial economists, from the University of Rochester and the University of Wisconsin–Madison respectively, created a model that explains how reputation, information, ...
Investigating lithium’s potential role in slowing cognitive decline in Alzheimer’s disease
2025-11-19
Alzheimer’s disease (AD) is a progressive neurodegenerative disorder characterized by cognitive decline such as memory loss and behavioral disturbances that severely impair quality of life. Despite decades of research, effective disease-modifying therapies remain elusive, underscoring the urgent need for novel neuroprotective strategies. Lithium (LIT), a well-known mood stabilizer for the treatment of bipolar disorder, shows neuroprotective effects, including inhibition of glycogen synthase kinase 3 beta, ...
LAST 30 PRESS RELEASES:
New data on donor selection in allogeneic stem cell transplantation – young age is gaining in importance
High blood pressure in adolescence a silent risk of atherosclerosis later in life
New study reveals central America’s “five great forests” are lifelines for North America’s migratory birds
American Physical Society to launch new open access journal on AI and machine learning in scientific research
Administrative staff are crucial to university efficiency, but only in teaching-oriented institutions
Studies suggest ambient AI saves time, reduces burnout and fosters patient connection
Lost signal: How solar activity silenced earth's radiation
Genetically engineered fungi are protein packed, sustainable, and taste similar to meat
Tiny antennas to bring electrical power to the un-powerable nanoparticles
Pause and rewind: how the brain keeps time to control action
Lung cancer deaths prevented and life-years gained from lung cancer screening
Physical activity over the adult life course and risk of dementia in the Framingham heart study
Trends in prevalence of adverse childhood experiences among children
Surface-only superconductor is the strangest of its kind
Stereotactic radiosurgery for craniopharyngioma management
Study questions water safety beliefs
Bacteria ‘pills’ could detect gut diseases — without the endoscope
National Cancer Institute grants support efforts to understand how fluid flow drives deadly brain cancer
New global satellite dataset for humanitarian routing and tracking infrastructure change
Australia’s middle-aged are the engine room of the nation but many risk burnout: Report
Why top firms paradoxically fire good workers
Investigating lithium’s potential role in slowing cognitive decline in Alzheimer’s disease
Wiley expands spectral libraries with major updates to IR, Raman, and LC-MS collections
Phase 2 clinical trial results show potential to shorten TB treatment time
UC San Diego researchers expand virus-based treatment options for antibiotic-resistant infections
New magnetic component discovered in the faraday effect after nearly two centuries
AI tool spots blood cell abnormalities missed by doctors
People in isolated cities in Africa suffer more violence against civilians
New antibodies developed that can inhibit inflammation in autoimmune diseases
Global and European experts convene in Warsaw for Europe’s leading public health conference on infectious diseases
[Press-News.org] Physical activity over the adult life course and risk of dementia in the Framingham heart studyJAMA Network Open