Tag

Cognitive Decline

All articles tagged with #cognitive decline

Western-style diets may speed up attention decline in APOE ε4 carriers, study suggests
alzheimers-and-dementia13 days ago

Western-style diets may speed up attention decline in APOE ε4 carriers, study suggests

A long-term Australian study (Western Australia Memory Study) suggests Western dietary patterns may be linked to faster attention decline in older adults who carry the APOE ε4 allele, though sensitivity analyses render the association uncertain. The analysis followed 185 participants with repeated cognitive testing over up to 90 months and identified dietary patterns (Western vs Prudent) using PCA, adjusting for age, sex, education, BMI, energy intake, and APOE status with false discovery rate correction; however, the result did not remain robust across all analyses.

Brisk Walking May Boost Brain Health in Older Adults
health17 days ago

Brisk Walking May Boost Brain Health in Older Adults

A study of 3,989 adults aged 80+ found those who walked the fastest—about 2.9 mph and dubbed 'super movers'—were roughly 50% less likely to develop cognitive impairment and 60% less likely to be diagnosed with Alzheimer's over five years, though brain scans showed similar levels of brain changes, suggesting greater resilience rather than less disease. The findings reinforce the link between mobility and brain health and, alongside general exercise guidance (about 150 minutes of moderate activity weekly), suggest social walking and pacing strategies to boost walking speed.

Cognition in Flux: Evidence of a Reverse Flynn Effect in U.S. Adults
science19 days ago

Cognition in Flux: Evidence of a Reverse Flynn Effect in U.S. Adults

A Northwestern study analyzing 394,378 U.S. adults (2006–2018) finds a reverse Flynn effect: composite cognitive scores declined over time across most age groups and education levels, especially among 18–22-year-olds and those with less education, with declines in matrix reasoning and verbal/sequence tasks but improvement in three-dimensional rotation. Verbal ability changed little and major tests like ACT/SAT also fell. The causes are unknown and the cross‑sectional data cannot establish causation; trends predate AI and COVID. Published in Intelligence.

30-minute daily brain routine linked to modest cognitive gains in older adults
health19 days ago

30-minute daily brain routine linked to modest cognitive gains in older adults

A 12-week, 30-minute daily routine combining reading aloud, handwriting, and simple math improved scores on the Mini-Montreal Cognitive Assessment from 12.73 to 13.26 out of 15 in 102 older adults with memory concerns; gains were mainly in memory recall and were larger for those living independently. The study notes limitations (no control group, small effect size) and calls for active-control future research. The routine is accessible, low-cost, and customizable via personal reading/writing topics to build cognitive resilience.

Persistent financial stress linked to brain aging across decades
health25 days ago

Persistent financial stress linked to brain aging across decades

A long-running UK study of 2,759 people from the 1946 birth cohort tracked income and hardship across adulthood and found that persistent low income and financial hardship were associated with poorer verbal memory and processing speed at age 53 and greater brain shrinkage by ages 69–71, even after accounting for childhood factors. The links were stronger in men, those from disadvantaged backgrounds, and APOE risk carriers. Interestingly, memory decline from 53 to 69 appeared slower for those with prior hardship, likely because they started from a lower baseline. While the study can’t prove causation, it suggests reducing chronic financial hardship could help protect brain health and potentially reduce dementia risk.

Nine-Hour Eating Window May Shield Against Cognitive Decline in Older Women
health28 days ago

Nine-Hour Eating Window May Shield Against Cognitive Decline in Older Women

A small trial of 47 overweight or obese women aged 50–79 found that restricting daily meals to a nine-hour window (roughly 10 a.m.–6 p.m.) produced modest cognitive benefits—better memory, spatial planning, and problem-solving—despite similar weight loss to a 12‑hour eating window group. Findings are preliminary and require confirmation in larger studies to determine if meal timing can protect cognitive health over time.

Chronic financial hardship linked to faster brain aging, UK study finds
health28 days ago

Chronic financial hardship linked to faster brain aging, UK study finds

A UK study of 2,759 people born in 1946 found that decades of persistent financial hardship and low income were associated with slower processing speed, poorer verbal memory, and brain MRI signs of accelerated aging, with stronger effects among men and APOE-ε4 carriers. The study, observational in nature, notes that while poverty accumulation over life may relate to cognitive decline, causality cannot be proved.

Eight everyday habits quietly harming brain health—and how to fix them
health1 month ago

Eight everyday habits quietly harming brain health—and how to fix them

Neurologists warn that eight daily habits—skipping sleep, sedentary lifestyle, inflaming diet, ignoring blood pressure/sugar/cholesterol, untreated hearing loss, chronic stress, social isolation, and excessive passive screen time—gradually accelerate brain aging. Small changes like consistent sleep, regular activity, a Mediterranean/DASH-inspired diet, regular health checks, hearing assessments, stress management, meaningful social interaction, and cognitively engaging activities can help protect memory and cognitive function over time.

Five everyday signs your brain health may be slipping, says neurologist ahead of World Brain Day
lifestyle1 month ago

Five everyday signs your brain health may be slipping, says neurologist ahead of World Brain Day

Ahead of World Brain Day, neurologist Dr. Nitti Kapoor Kaushal says subtle changes such as persistent forgetfulness, trouble finding words, poor balance, sleep disturbances, and reduced focus can signal early brain decline; she urges timely evaluation if these persist, and offers lifestyle steps to protect brain health, including regular physical activity, a brain-friendly diet, quality sleep, social engagement, and managing blood pressure and diabetes.

Artificial sweeteners may accelerate brain aging, study finds
health1 month ago

Artificial sweeteners may accelerate brain aging, study finds

A Brazilian study of 12,772 adults over about eight years found that higher intake of low- and no-calorie sweeteners is associated with faster cognitive decline, especially in people under 60 and those with diabetes. Six sweeteners (aspartame, saccharin, Acesulfame K, erythritol, sorbitol, xylitol) were linked to greater decline, while tagatose showed no association. The study is observational and relies on self-reported diets, so it cannot prove causation; more research is needed to confirm findings and explore alternatives to artificial sweeteners.

Artificial Sweeteners May Speed Up Cognitive Aging, Large Brazilian Study Finds
health1 month ago

Artificial Sweeteners May Speed Up Cognitive Aging, Large Brazilian Study Finds

A Brazilian study of nearly 13,000 adults over eight years found that higher intake of six common artificial sweeteners (aspartame, saccharin, acesulfame K, erythritol, xylitol, sorbitol) was linked to faster cognitive decline; tagatose showed no such effect. The highest consumers declined about 62% faster than the lowest, roughly equating to 1.6 extra years of aging, with stronger effects in adults under 60 and those with diabetes. The study is observational and relies on self-reported intake, so it shows associations, not causation.

Zero-calorie sweeteners tied to faster brain aging in adults
health1 month ago

Zero-calorie sweeteners tied to faster brain aging in adults

A Brazilian study of 12,772 adults followed for about eight years found that higher consumption of seven low- or no-calorie sweeteners (aspartame, saccharin, acesulfame K, erythritol, sorbitol, xylitol, and tagatose) was associated with faster declines in overall cognition and memory, especially in people under 60 and those with diabetes; the strongest link showed about 62% faster decline (roughly 1.6 extra years of aging) for the highest vs lowest intake, with six sweeteners linked and tagatose not; the study shows association, not causation, and relies on self-reported data, so more research is needed and alternatives like unprocessed sweeteners may be worth considering.