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Beyond grip strength: selective slowing of grip force release but not initiation dynamics in a go/no-go target force-matching task

2 weeks ago
INTRODUCTION: Precise regulation of grip forces is fundamental for skilled object manipulation and independent navigation of everyday activities throughout the lifespan. Maximal grip strength is a widely used biomarker of aging and frailty, but it provides limited insight into the temporal and inhibitory control mechanisms required for dexterous prehension. Evidence suggests that grip-force release, which requires integration of sensory feedback and inhibition of sustained grip, may be...
Syed Qadri

New MRI breakthrough reveals the brain and eye like never before

2 weeks ago
Scientists have redesigned a key piece of MRI hardware using metamaterials, allowing existing scanners to produce clearer images of difficult-to-see parts of the body in less time. The breakthrough could improve diagnoses, make scans more comfortable, and open the door to new medical imaging and treatment applications.

Scientists just debunked a dangerous baby rattlesnake myth

2 weeks 1 day ago
A new study debunks the long-standing claim that baby rattlesnakes are more dangerous than adults. Researchers found that young rattlesnakes can control their venom just like adults, while adult snakes usually inject much more venom and cause more serious bites. The team also uncovered how the myth spread through decades of inaccurate news reports and misleading quotes from trusted sources.

Irisin in the aging immune landscape: A new player at the crossroads of immunosenescence and sepsis

2 weeks 1 day ago
CONCLUSIONS: Irisin represents a promising link between muscle-derived signaling and immune resilience. While clinical application is currently hindered by assay variability and a need for larger human cohorts, its role in modulating both immunosenescence and acute sepsis pathophysiology marks it as a possible prognostic biomarker and a potential therapeutic target in the vulnerable aging population.
Lara De Luca