Frequency

Papers on frequency

11,190 papers380 new in 30 days

Tuesday, October 27

IEEE Journal of Biomedical and Health Informatics

Model estimates brain age from overnight brain-wave recordings

The model’s predictions differed from actual ages by 5.89 years on average, and by 5.41 years in an independent validation group.The model’s predictions differed from actual ages by 5.89 years on average, and by 5.41 years in an independent validation group.

A brain seen from above with electrode discs and a dark branching detail sits beside a smaller gray brain and clusters of upright, faceless people.
Computational studyBiomarkers
bioRxiv

Older adults show largely preserved brain responses to speech cues

A laboratory experiment with 40 younger and 40 older adults found different links between combined sound-and-vision brain responses and speech comprehension.A laboratory experiment with 40 younger and 40 older adults found different links between combined sound-and-vision brain responses and speech comprehension.

Two brains viewed from above show similarly intact folds and dark patches, with ears beside them and overlapping lips below.
Preprint: non-randomized trialMechanisms

Monday, October 26

Psychology and Aging

Activities with children linked to longer life in older adults

An observational study of 6,775 participants linked more frequent activities with children within and outside their families to survival over 12 years.An observational study of 6,775 participants linked more frequent activities with children within and outside their families to survival over 12 years.

Older adults in dark blue-green share a ball and book with several children, while a smaller gray group stands apart with one child.
Cohort · 6,775 peoplePopulations
ESC Congress 2026 Abstract

Stiffer arteries linked to visual field loss in US adults

The quarter of adults with the stiffest arteries had 4.29 predicted visual field defects, versus 3.06 in the quarter with the most elastic arteries.The quarter of adults with the stiffest arteries had 4.29 predicted visual field defects, versus 3.06 in the quarter with the most elastic arteries.

Cross-sectional · 4,853 peopleEye
ESC Congress 2026 Abstract

New sleep apnea measure is linked to heart death risk

Adults in the highest third of a new sleep apnea score had a 72% higher risk of cardiovascular death compared to those in the lowest.Adults in the highest third of a new sleep apnea score had a 72% higher risk of cardiovascular death compared to those in the lowest.

A large heart cross-section with a dark damaged patch and gray blood cells sits beside a smaller intact heart with pale blue-green blood cells.
Cohort · 4,904 peopleBiomarkers
ESC Congress 2026 Abstract

Model maps shifting links among heart, kidney and fat markers

An observational analysis of 5,386 people in China linked modeled disease progression to a shift from blood-fat marker connections toward heart–kidney connections.An observational analysis of 5,386 people in China linked modeled disease progression to a shift from blood-fat marker connections toward heart–kidney connections.

A cutaway heart and nearby kidneys share dark tissue accents, while a separate cluster of blood cells surrounds small fat particles.
Cohort · 5,386 peopleBiomarkers
ESC Congress 2026 Abstract

HIV was not linked to an age-related blood condition in veterans

The adjusted odds ratio was 0.99 for veterans with HIV versus those without; a value of one would mean no association.The adjusted odds ratio was 0.99 for veterans with HIV versus those without; a value of one would mean no association.

Blood cells form two facing groups with similar clusters of dark, lobed cells; small spiky viral particles surround only the left group.
Cohort studyPopulations