Tag

Lifespan

All articles tagged with #lifespan

health3 days ago•416 min saved

A 10-Second Balance Test Could Hint at Your Lifespan (And How to Improve It)

A simple 10-second, one-leg balance test may help estimate how long you’ll live and how mobile you’ll stay, reflecting how well your body’s systems work together. A 2022 study of about 1,700 adults aged 51–75 linked failing the test to an 84% higher risk of death over 10 years. If you can’t pass yet, start with a few seconds per leg, use a wall or the lifted toe for stability, and gradually increase duration—balance can be trained and improve aging outcomes over time.

via TODAY.com|

#aging #balance #exercise

science21 days ago•10 min saved

Nearly 400-Year-Old Greenland Shark Upends Lifespan Expectations

A 2016 study estimated a Greenland shark could be as old as about 392 years, likely born around the end of Shakespeare’s era, and unlikely to reach sexual maturity until roughly age 150. Researchers dated the eye lens nucleus using radiocarbon dating, using the 1950s nuclear-test carbon-14 spike as a time stamp, and analyzed 28 females with a margin of error about 120 years. This extreme longevity makes it the longest-lived vertebrate and implies very slow population recovery, posing conservation challenges for the species.

via Space Daily|

#conservation #greenland-shark #lifespan

science1 month ago•40 min saved

Biological Clock Aims to Predict Your Remaining Lifespan

Scientists describe a novel “biological clock” that uses biomarker data to estimate a person’s remaining lifespan. While promising for refining aging risk assessments and guiding personalized interventions, the approach is early-stage, not highly precise, and raises ethical/privacy considerations while more validation is needed.

via Yahoo|

#aging #biology #epigenetics

science1 month ago•11 min saved

The Longevity Question: Data and Demographics Obscure the Real Limits

Science journalist David Adam reports on Saul Newman’s critique of the upper-limit-to-life debate, arguing that much of what passes for evidence of a hard lifespan bound rests on faulty or unreliably recorded data. Extreme-age records are plagued by pension fraud, clerical errors, and misreporting, casting doubt on claims of mortality plateaus or hard genetic limits. Newman urges calibration of aging biomarkers with physical dating methods (not just paperwork-based estimates) to distinguish biology from administrative error, and calls for understanding the distribution of age-coding mistakes. Until data are anchored in physical measurements, the search for a maximum human lifespan remains unsettled.

via Nature|

#aging #biomarkers #data-quality

science1 month ago•5 min saved

Lifespan More Genetically Wired Than We Realized, New Study Finds

A new Science study estimates that about 55% of human lifespan is heritable, roughly double previous estimates, after carefully separating intrinsic genetic factors from extrinsic causes of death. By analyzing twin data, varying age cutoffs, and corroborating with Scandinavian twins and American centenarian siblings, researchers show that reducing extrinsic mortality reveals the stronger genetic signal and that aging-related frailty can blur it. The finding reshapes how aging research is funded and pursued, and points to the search for specific genetic variants that govern intrinsic aging.

via Indian Defence Review|

#aging #genetics #heritability

science1 month ago•37 min saved

Genes May Set Half Your Lifespan, New Study Finds

New research suggests genetic factors account for about 50% (roughly 50–55%) of human lifespan, higher than previous estimates. Using twin simulations and real-world data, researchers show that extrinsic mortality and historical age cutoffs biased earlier heritability estimates downward; when corrected, heritability rises to about half. Scandinavian twin data and studies of siblings of centenarians corroborate the finding, pointing aging research toward identifying the specific genetic variants that govern longevity.

via Yahoo News Canada|

#aging #genetics #heredity

health2 months ago•12 min saved

Brain Health Is a Lifespan Blueprint: Sleep, Gut, and Social Context Shape Aging

A new American Heart Association scientific statement argues that brain health is built across the entire life span, with external factors such as sleep quality, mental health, the gut microbiome, obesity, and social/environmental conditions strongly influencing the risk of stroke, cognitive decline, and dementia. Early adversity and chronic inflammation can echo into late life, but interventions at any age—like better sleep, stress management, Mediterranean-style eating, physical activity, and robust social connections—can bend the aging curve. The report calls for prevention, early detection, and policies to promote brain health from before birth through adulthood, supported by new research funding initiatives.

via Neuroscience News|

#brain-health #gut-brain-axis #health

animals2 months ago•20 min saved

Midlife Habits in a Tiny Fish May Forecast Lifespan Across Vertebrates

Stanford researchers tracked 81 African turquoise killifish with automated surveillance and found that midlife differences in sleep timing and daytime activity already distinguish longer‑ from shorter‑lived individuals. Using machine learning, just a few days of middle‑aged behavior could predict ultimate lifespan, revealing a stepwise aging pattern and linking behavioral changes to liver‑gene activity. The findings suggest wearable‑type monitoring in humans could detect early aging signals and guide preventive interventions in the future.

via Earth.com|

#aging #animals #behavior

science2 months ago•42 min saved

Earth Hits Halfway Mark of Its 4.5 Billion-Year Lifespan

New climate simulations suggest Earth is roughly halfway through its habitable lifetime, with about a billion years of livable conditions remaining before a runaway greenhouse vaporizes the oceans; after that, the Sun is expected to expand into a red giant around five billion years from now, likely ending Earth’s existence.

via Yahoo|

#earth #habitable-window #lifespan

science3 months ago•6 min saved

Lifespan Atlas Maps How Brain Networks Evolve Across Life

Researchers publish the first lifespan atlas of brain functional connectivity, using fMRI data from about 3,600 people aged from infancy to 100 years to chart how brain networks reorganize from sensory processing to higher‑order cognition and relate to cognitive performance in young adults.

via Nature|

#brain #fmri #functional-connectivity

neuroscience3 months ago•80 min saved

Three Gradients Shape Lifespan Cortical Hierarchy

A large-scale lifespan study maps three core functional gradients—sensory–association (SA), visual–somatosensory (VS), and modulation–representation (MR)—across birth to 100 years, showing early anchoring to primary sensory systems, differentiation along association and control axes through development, and later dedifferentiation with aging; these gradients relate to cognitive performance, structure–function coupling, and transcriptomic patterns, providing a normative lifespan atlas for brain organization.

via Nature|

#brain-development #fmri #functional-gradients

health3 months ago•4 min saved

The motherhood sweet spot: two to three kids linked to longer life

A Finnish twin study of almost 15,000 women found that having about two to three children is associated with the slowest aging and longest life, while having far more (around 6.8) or not having children is linked to higher mortality and faster biological aging; age at childbirth also matters, with earlier births tied to faster aging. The findings show associations, not causation, and researchers caution against changing personal reproductive plans based on this study, noting that many factors influence aging and lifespan.

via New York Post|

#aging #birth #health

health3 months ago•12 min saved

Anxiety Across the Lifespan: Practical Steps to Cope at Any Age

A life-span feature shows anxiety as a common, normal response to uncertainty that spans childhood to older age, offering stage-specific strategies: validate and normalize feelings in kids, model openness for teens, foster healthy habits and social connection in young adulthood, prioritize friendship and self-care in midlife, and use CBT, sleep hygiene and gradual exposure in older age, with guidance on when to seek help.

via The Guardian|

#anxiety #cbt #coping-strategies

science3 months ago•7 min saved

Genes Take the Lead on Longevity, Twin Study Shows

A twin-registry analysis that accounts for extrinsic mortality finds genetics account for about 50% of variation in human lifespan, more than double previous estimates, reshaping how scientists study aging and search for longevity genes.

via SciTechDaily|

#aging #genetics #heritability

science4 months ago•10 min saved

Aging in Steps: Behavior Predicts Lifespan in Killifish

Researchers monitored 81 African turquoise killifish from adolescence to death, identifying 100 behavioral building blocks and showing that by early adulthood, differences in sleep and movement predict total lifespan. Shorter-lived fish nap more during the day and swim slower, while longer-lived fish stay active during daylight. Aging appears as 2–6 rapid transitions rather than a smooth decline, with coordinated changes in liver gene activity related to protein production and cellular maintenance aligning with the predictive behavioral shifts. The work suggests behavior can be a sensitive, noninvasive readout of aging and hints wearables could reveal human aging trajectories and potential intervention windows.

via Neuroscience News|

#aging #behavior #killifish