Tag

Aging

All articles tagged with #aging

neuroscience6 hours ago•5 min saved

Super agers keep generating young neurons into old age

New Nature study finds that older adults with healthy cognition, including 'super agers', continue to produce immature neurons in the hippocampus at higher levels than those with cognitive decline, suggesting persistent neurogenesis may support memory; the neuron fraction is tiny (~0.01%), and the small sample sizes mean results should be interpreted cautiously; researchers hope to harness this process to develop therapies that boost neurogenesis in aging and Alzheimer's.

via Nature|

#aging #hippocampus #memory

health10 hours ago•8 min saved

Shingles vaccine tied to lower dementia risk, with newer shots showing stronger signals

Natural-experiment studies across Wales, Australia, Canada, and the US consistently link shingles vaccination with reduced dementia risk, and newer data suggest that Shingrix may offer larger protective benefits than the older Zostavax—potentially by lowering brain inflammation from varicella-zoster reactivation—though causality and gender differences require further study.

via Ars Technica|

#aging #dementia #health

science11 hours ago•8 min saved

Calming the Cell's Recycling Centers Rejuvenates Blood Stem Cells

Mount Sinai researchers found that aging in hematopoietic stem cells is driven by hyperactive lysosomes; by inhibiting lysosomal activity in aged cells ex vivo, they restored youthful function and boosted in vivo blood-forming capacity by over eightfold, offering a potential path to treating age-related blood disorders and improving stem cell transplants.

via SciTechDaily|

#aging #ex-vivo #hematopoietic-stem-cells

science12 hours ago•1 min saved

Super-agers Show More New Brain Cells in Memory Hub, Study Finds

A Nature study finds that super-agers (80+) have roughly twice as many new neurons in the hippocampus as older adults with normal memory, and about 2.5 times more than people with Alzheimer’s, suggesting adult neurogenesis may help explain their exceptional memory and cognitive resilience.

via The New York Times|

#aging #alzheimers #hippocampus

health12 hours ago•5 min saved

Magnesium in Diet Linked to Slower Brain Aging and Lower Dementia Risk

A UK Biobank study found higher dietary magnesium intake (around 550 mg/day from food) is associated with slower brain aging and reduced dementia risk, with stronger benefits for postmenopausal women. While excess magnesium from supplements can cause GI issues, experts say most people should focus on foods rich in magnesium (e.g., leafy greens, nuts, whole grains) and consult a clinician before taking supplements; the NIH notes daily needs vary by age and sex (about 310–420 mg).

via Prevention|

#aging #brain-health #dementia

science14 hours ago•215 min saved

Cellular clues explain why some octogenarians stay mentally sharp

A study of self-described “SuperAgers”—people over 80 with exceptional memory—shows they have more newly formed neurons and a hippocampal environment that supports neurogenesis, along with thicker attention-related brain regions and fewer tau tangles than typical aging. Using multiomic single-cell sequencing across donor brains, researchers found astrocytes and CA1 neurons drive memory retention, suggesting that a combination of genetics and brain-healthy lifestyle supports sustained cognition into advanced age.

via CNN|

#aging #hippocampus #memory

health15 hours ago•16 min saved

Aging Accelerates at 50 Across the Body, New Study Finds

A study analyzing 516 tissue samples from 76 organ donors aged 14–68 shows rapid aging begins around age 50, with different organs aging at different rates. The findings support aging as a systemic, nonuniform process and highlight the need for further research. In the meantime, NIH/CDC guidance emphasizes regular exercise, a nutrient-rich diet, portion control, and social engagement to maintain health and quality of life into later years.

via Good.is|

#aging #health #longevity

science22 hours ago•2 min saved

Birdwatching Could Help Preserve Brain Function with Age

Canadian researchers report that expert birders have higher density in brain regions tied to attention and perception, suggesting lifelong birding—and by extension bird photography—may bolster neural networks through neuroplasticity and help mitigate age-related cognitive decline, though it does not prove prevention of decline.

via PetaPixel|

#aging #birding #brain-health

science1 day ago•4 min saved

Birding Brains: Expertise Builds Lasting Cognitive Reserve

A neuroscience study comparing 29 expert birders with 29 age- and sex-matched novices found that experts have more compact, efficient brain tissue in attention- and perception-related regions, which correlates with higher accuracy in bird identification. These structural advantages persist into older age, and older birders even remember arbitrary faces paired with birds better than beginners, suggesting that complex, multi-process skill learning builds cognitive reserve that supports broader cognition as we age.

via Neuroscience News|

#aging #cognitive-reserve #diffusion-weighted-mri

health1 day ago•261 min saved

Peak Fitness and the Slow March of Aging

A Swedish 47-year longitudinal study followed 427 people from age 16 to 63, showing muscular power peaks around age 19 in women and 27 in men, aerobic capacity peaks in the mid-30s, and a gradual decline of about 1% per year that speeds up with age. Individual aging paths vary greatly, but regular, varied physical activity is the best defense against decline; the study’s limitations include only five data points over 47 years and binary exercise data, yet it’s clear: it’s never too late to start exercising to maintain fitness.

via AOL.com|

#aerobic-capacity #aging #exercise

technology1 day ago•3 min saved

Minecraft 26.1 Snapshot 10 brings aging particles and tinier baby mob heads

Minecraft 26.1 Snapshot 10 introduces new particles to indicate mob aging with Golden Dandelions, shrinks baby mob heads, makes Striders inherit warmth from their mount, and adds growth-related particles (pause_mob_growth and reset_mob_growth). It also updates data pack to 99.3 and resource pack to 82, refreshes textures for baby mobs, and fixes a broad bug list along with UI/IME and armor display tweaks. Enable snapshots in the launcher to try it, keeping in mind testing versions can corrupt worlds.

via Minecraft|

#aging #minecraft #mobs

science1 day ago•17 min saved

Common high-blood-pressure drug hints at anti-aging potential in animals

A long-used hypertension medication, rilmenidine, extended lifespan in the worm C. elegans and induced youthful metabolic changes in mice, pointing to aging pathways that can be slowed with an existing drug. The study links the effect to the nish-1 receptor and autophagy, with older animals benefiting nearly as much as younger ones, and suggests early human trials could focus on biomarkers if safety remains favorable.

via Earth.com|

#aging #aging-research #caloric-restriction-mimetics

health2 days ago•4 min saved

Lower eyelid surgery helps a Raleigh grandfather look fresher and feel more confident

A 56-year-old Raleigh businessman, John Fleming, underwent lower blepharoplasty to remove excess fat and skin under the eyes, addressing bags that made him look tired. The procedure, done under general anesthesia and costing about $5,000, took about an hour. About two months post-op, he reports looking fresher and more energetic and feels more confident, with plans to switch from glasses to contact lenses; he notes the change is subtle and not looking “fixed.”

via Business Insider|

#aging #blepharoplasty #cosmetic-surgery

science2 days ago•7 min saved

Workout-Driven Shield: How Exercise Tightens the Brain’s Barrier to Preserve Memory

UC San Francisco researchers show that exercise increases the liver enzyme GPLD1, which travels to brain blood vessels and removes TNAP from the blood-brain barrier. This restores barrier integrity and reduces leakiness and inflammation in aging mice, helping memory and cognitive performance, and suggesting new therapeutic avenues for aging and Alzheimer’s-related decline.

via SciTechDaily|

#aging #blood-brain-barrier #exercise

wellness3 days ago•18 min saved

Active seniors: diversify movement and prioritize sleep to prevent overuse

A geriatric physical therapist explains that highly active seniors can suffer from repetitive-stress injuries when recovery is neglected. She recommends diversifying movement to include cardio, strength, balance, and tissue-restoration, scheduling rest days and prioritizing high-quality sleep, and consulting a physical therapist to tailor a safe, well-rounded plan.

via Fit&Well|

#aging #exercise #physical-therapy