Tag

Dementia Risk

All articles tagged with #dementia risk

health13 days ago•14 min saved

Midlife TV Watching Linked to Future Brain Size Decline, USC Study Finds

A USC-led study of about 1,700 adults followed for more than two decades found that watching television very often in midlife is associated with smaller memory-related brain regions, reduced frontal and occipital lobes, and greater white-matter damage later in life, even after accounting for physical activity and other risk factors. The research suggests what you do while sitting may matter more for brain health than how long you sit, though it cannot prove causation and calls for further work on whether substituting cognitively engaging activities could help preserve brain health.

via HuffPost|

#brain-health #dementia-risk #health

health27 days ago•4 min saved

MHRA urges older adults to cut back on anticholinergic medicines amid dementia uncertainty

The UK MHRA advises older adults to limit how many anticholinergic medicines they take and use the lowest effective dose for the shortest time after a safety review found a small, uncertain link between bladder anticholinergics and dementia. While evidence does not prove causation, prolonged exposure and use of multiple anticholinergics may raise cognitive risks, so clinicians should minimize exposure. Bladder antimuscarinics are commonly used for overactive bladder, a condition frequently seen in dementia, and memory- or confusion-related side effects are noted, prompting a cautious approach to long-term use.

via Medscape|

#anticholinergic-drugs #bladder-antimuscarinics #dementia-risk

health28 days ago•3 min saved

Eight-Hour Eating Window May Boost Cognition in Older Women

A small six-month trial with 47 overweight/obese women aged 50–79 found that those who ate within an 8–9 hour daily window (and cut calories by 500) showed greater improvements in spatial planning and problem-solving than peers who ate over ~12 hours, despite similar weight loss (~15 lb). Memory tasks tended to improve as well but not significantly; no differences in reaction time or multitasking. The results suggest meal timing could offer cognitive benefits beyond weight loss, but larger studies are needed to confirm and explain the mechanisms (circadian rhythm, inflammation, metabolism).

via ScienceDaily|

#aging #cognitive-function #dementia-risk

health29 days ago•4 min saved

Time-Restricted Eating Shows Early Cognitive Gains in Older Women on Weight-Loss Plan

A six-month pilot in 47 overweight/obese women aged 50–79 found that restricting eating to an 8–9 hour window (about 10 a.m.–6 p.m.) with a 500-calorie daily reduction yielded similar weight loss to a 12-hour window but produced greater improvements in spatial planning and problem-solving, with a trend toward fewer memory errors. No significant differences were seen in multitasking or reaction time. Findings are preliminary and require confirmation in larger studies; researchers will explore circadian, metabolic, and inflammation-related mechanisms. Presented at Nutrition 2026.

via StudyFinds|

#cognition #dementia-risk #health

health1 month ago•10 min saved

Split sleep could shield night-shift workers from health risks

Night-shift work disrupts the body’s circadian rhythm, harming sleep quality and potentially increasing risks of dementia, heart disease and mental illness as sleep disruption affects brain waste clearance and raises stress hormones. Researchers are exploring biphasic sleep (two daily sleep blocks) and planned naps as possible ways to mitigate harm, aiming to develop clear guidelines for shift workers, though more evidence is needed.

via AOL.com|

#biphasic-sleep #dementia-risk #health

health1 month ago•6 min saved

Brisk walking in seniors linked to lower dementia risk, study finds

A study of about 4,000 people aged 80+ found that those who walked much faster than peers—“super movers”—had roughly half the risk of cognitive impairment compared with typical-speed walkers. Postmortem brain analyses showed similar dementia-related changes in both groups, suggesting mobility is a marker of brain health rather than a proven cause of protection. The study is observational, so it cannot prove causation, and other factors like cardiovascular health, fitness, and genetics may influence both walking pace and cognitive outcomes. The takeaway remains that regular physical activity—aiming for about 150 minutes of moderate activity weekly, with walking plus strength and balance training—supports healthy aging.

via Fox News|

#aging #cognition #dementia-risk

health2 months ago•7 min saved

Three Sleep Habits Linked to Early Brain Aging Markers

A UK Biobank study of about 23,000 middle-aged and older adults followed for roughly nine years found that sleeping outside the seven-to-nine-hour window (especially fewer than seven hours), frequent daytime napping, and sleeplessness each correlate with higher brain white matter lesion volumes on MRI, a marker linked to aging and dementia risk. After adjusting for vascular and lifestyle factors, snoring and unintentional daytime dozing did not show the same links. Short sleep showed a stronger association than long sleep, and while naps can aid alertness, frequent napping may signal underlying sleep problems. The researchers emphasize sleep as a modifiable risk factor that could help reduce brain aging and dementia risk, though nap duration details were not captured in this study.

via Neuroscience News|

#brain-aging #dementia-risk #health

health2 months ago•14 min saved

UA study links sleep patterns to brain aging markers

A University of Arizona study analyzing brain MRIs from more than 23,000 middle-aged and older adults found that sleeping outside the recommended seven-to-nine hours, frequent daytime napping, and sleeplessness are linked to greater white matter lesion volumes, markers of brain aging and higher dementia risk; after accounting for vascular health and lifestyle factors, only three sleep behaviors remained significant, with shorter than seven hours showing increased lesion burden, while longer sleep showed no clear additional impact; researchers say sleep could be a modifiable risk factor for brain aging and dementias like Alzheimer's.

via KVOA|

#brain-aging #dementia-risk #health

health3 months ago•4 min saved

Ultra-Processed Foods Linked to Duller Attention and Higher Dementia Risk

A study of 2,192 Australian adults found that every 10% increase in calories from ultra-processed foods is linked to a small drop in attention and a higher dementia risk, with effects persisting even for those following a Mediterranean-style diet; causation isn't proven, but the findings add to concerns about ultra-processed foods and cognitive health.

via VICE|

#attention-span #dementia-risk #health

health3 months ago•4 min saved

Ultra-Processed Diet Linked to Reduced Focus and Higher Dementia Risk

An observational study of 2,192 dementia-free Australians aged 40–70 found that ultra-processed foods made up about 41% of total energy intake and were associated with poorer attention and higher dementia risk. Specifically, every 10% increase in ultra-processed foods correlated with a ~0.05-point drop in attention and ~0.24-point higher dementia risk scores. The findings suggest processing itself may affect cognitive health beyond nutrients; adherence to a Mediterranean diet did not offset the effect. Causality can’t be established, and further research is needed.

via ScienceAlert|

#brain-health #cognition #dementia-risk

health3 months ago•7 min saved

Ultraprocessed foods linked to higher dementia risk and weaker attention

A Monash University-led study of more than 2,000 dementia-free Australians aged 40–70 found that each 10% rise in ultraprocessed food intake was associated with lower attention scores and higher dementia risk, even among people with generally healthy diets; memory effects were not observed. Self-reported data and potential confounding limit the strength of conclusions. Researchers and experts, including Dr. Daniel Amen, call for dietary guidelines to consider processing level and for replacing ultraprocessed foods with real foods to protect brain health.

via Fox News|

#attention #brain-health #dementia-risk

health4 months ago•5 min saved

Tiny Increases in Ultra-Processed Foods Linked to Attention Decline and Dementia Risk

A cross-sectional study of 2,192 dementia-free Australian adults finds that each 10% rise in ultra-processed food (UPF) intake is tied to lower visual attention scores and higher dementia risk, independent of overall diet quality. The impact persists even among those following a healthy Mediterranean pattern, suggesting that the degree of food processing itself may drive cognitive decline via additives and processing chemicals. The study shows association, not causation, but highlights attention as a foundation for learning and a potential early dementia risk factor.

via Neuroscience News|

#attention #cognitive-function #dementia-risk

health4 months ago•8 min saved

Salt and aging: higher sodium speeds memory decline in older men

An observational six-year study of more than 1,200 Australians aged 60+ found higher baseline dietary sodium linked to faster decline in episodic recall in men, but not in women, suggesting salt may be a modifiable factor in cognitive aging; however, causation cannot be established and the findings come with limitations like reliance on baseline sodium data and a predominantly Caucasian sample.

via Fox News|

#aging #blood-pressure #dementia-risk

science4 months ago•4 min saved

Midlife Vitamin D Linked to Lower Tau Buildup in Brain

A study of 793 adults found higher vitamin D levels in midlife (around age 39) were associated with fewer tau protein tangles in brain scans about 16 years later; there was no link with amyloid-beta. The results show association, not causation, and researchers say clinical trials are needed to determine if vitamin D supplementation could help reduce dementia risk.

via ScienceAlert|

#alzheimers-disease #dementia-risk #midlife-health

health4 months ago•1 min saved

Garden therapy: tending plants may boost cognitive health in aging minds

Gardening may benefit brain health in older adults by combining physical exercise, mental engagement, and stress reduction; while not a guaranteed dementia preventer, it aligns with other risk-reduction strategies such as managing cardiometabolic health, lifelong learning, social connection, about 150 minutes of moderate activity weekly, a brain-healthy diet (Mediterranean or DASH), and addressing hearing loss.

via The Boston Globe|

#aging #cognitive-health #dementia-risk