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Scientists create a needle-thin brain implant that can do three jobs at once
A new needle-thin brain implant can record neural activity, deliver drugs, and stimulate multiple brain regions using a single flexible fiber. Successful tests in mice suggest it could give scientists a more precise, less invasive way to study the brain and may eventually help treat neurological disorders such as epilepsy.
Chronic stress may be quietly reshaping your heart
Chronic inflammation tied to stress, lifestyle, mental health, and socioeconomic conditions may silently change the heart for years before any symptoms appear. People with the highest inflammation levels faced a 43% greater risk of heart attack and stroke, raising hopes that earlier testing and anti-inflammatory treatments could help prevent serious heart disease.
This dolphin chased a fish until it puked—then ate the vomit
The behavior, known as kleptoparasitism, marks one of the few well-documented examples of a cetacean stealing food
Stanford scientists discover the human brain may actually be two separate organs
Scientists have found that the human brain develops from two distinct cellular systems, suggesting that evolution fused together two ancient nervous systems with very different jobs. The discovery also allowed researchers to grow human hindbrain neurons in the lab, opening new possibilities for studying ALS, spinal muscular atrophy, and other brainstem diseases.
Two-wave status patterns of handgrip strength asymmetry and low handgrip strength in relation to all-cause mortality in middle-aged and older Chinese adults
Handgrip strength asymmetry (HGSA) and low handgrip strength (LHGS) reflect distinct aspects of muscle health, but their changes over time have been less studied. We examined whether two-wave status patterns of HGSA and LHGS were associated with all-cause mortality in middle-aged and older Chinese adults. We analyzed 8924 participants aged ≥ 45 years from the China Health and Retirement Longitudinal Study. HGSA and LHGS were assessed in 2011 and 2013 and classified as normal at both waves, newly...
Targeting pro-senescent PTGS2(+) macrophages alleviates chondrocyte senescence and osteoarthritis progression
No abstract
Association of a multiple risk factor assessment and intervention program with risk of diabetes: A population-based matched cohort study
CONCLUSIONS: In this population-based cohort study, participation in a low-intensity preventive health program delivered in routine care was associated with a lower incidence of diabetes among older adults. However, the observational study design limits evidence on the intervention's role in the observed association, and more robust evidence is needed. Nevertheless, these findings suggest that scalable, population-wide prevention strategies may complement intensive high-risk approaches in...
Life-Course Adversity, Adult Socioeconomic Position, and Possible Sarcopenia Among Older Adults in Postwar Vietnam
ObjectivesThis study examines how early-life hardship, wartime exposure, military service, and adult socioeconomic position are associated with grip strength-based possible sarcopenia among older adults in postwar Vietnam.MethodsWe analyzed data from the Wave 1 Vietnam Health and Aging Study among 2,166 adults aged 59 and older. Possible sarcopenia was defined using Asian Working Group for Sarcopenia 2019 grip-strength thresholds; survey-adjusted logistic regression models were...
Association of B-Type Natriuretic Peptide With Intrinsic Capacity Trajectories Among Chinese Older Adults
CONCLUSIONS: Elevated and persistent BNP abnormalities are consistently associated with IC decline, supporting BNP as a practical biomarker for early identification of older adults at risk of functional deterioration.
'Epigenetic' editing is here: gene-tagging technique banishes hepatitis B virus
AI co-scientists are revolutionizing how research is done
China punishes prominent academics exposed by research sleuth
Edible batteries power medical devices in the body
Chemist-aligned retrosynthesis by ensembling diverse inductive bias models
How do I change labs gracefully during my PhD?
Losing your way of life to climate change matters — and we need a way to measure it
Six principles for supporting academic freedom in universities
White House move to seize control of NIH grant decisions upsets senators and scientists
Budget chief Russell Vought reportedly wants more power to veto DEI-related funding
Millions take calcium and vitamin D for bone health. A major review finds little benefit
A sweeping review of more than 153,000 adults found that calcium and vitamin D supplements, alone or together, do little to prevent fractures or falls in most older people. Researchers say the findings challenge routine supplementation for prevention and point instead toward strategies such as balance and resistance exercise.
8 common food additives linked to high blood pressure and heart disease
Common preservatives hiding in processed foods may carry unexpected heart risks, with heavy consumption linked to substantially higher rates of high blood pressure and cardiovascular disease. Researchers identified eight widely used preservatives associated with hypertension, although the observational study cannot prove they were directly responsible.