ScienceDaily
Deafness reversed: One injection restores hearing in just weeks
A single injection delivering a functional copy of a critical hearing gene has restored hearing in all ten participants of a landmark gene therapy trial, with some patients showing measurable improvement within weeks. The treatment targets individuals born deaf due to a specific genetic mutation, administering the therapy directly into the inner ear. If results hold in larger trials, this approach could fundamentally change the treatment landscape for hereditary deafness.
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Study finds dangerous lead levels in children’s clothing
Fast fashion's bargain prices may carry a toxic hidden cost. A new study found that children's shirts from multiple major retailers all exceeded U.S. safety limits for lead, with brightly colored fabrics posing the greatest risk due to dye-fixing chemicals. Given that young children routinely chew on clothing, researchers warn that even brief exposure could deliver unsafe doses of a substance with well-documented links to neurological damage.
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Scientists discover why flu and COVID hit older adults so hard
Researchers have identified a key reason older adults face worse outcomes from respiratory infections like flu and COVID: aging lung cells that trigger runaway inflammation rather than effective immune defense. These cells form damaging clusters that harm lung tissue instead of fighting infection. The finding carries significant therapeutic potential, as blocking this aging-related signal could open new treatment avenues for vulnerable populations.
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Scientists say BMI gets it wrong for over one third of adults
A landmark study comparing BMI classifications against precise DXA body fat scans found that more than one-third of adults are incorrectly categorized by the widely used metric. Some individuals flagged as overweight or obese carried normal body fat levels, while others with genuinely high body fat flew under the radar. The findings add serious weight to longstanding scientific criticism of BMI as a reliable health screening tool.
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This tiny claw in a 500-million-year-old fossil just rewrote the origin of spiders
A chance discovery during routine fossil preparation has redrawn the spider family tree. Researchers identified Megachelicerax cousteaui as the oldest known chelicerate — the group that includes spiders and horseshoe crabs — pushing its origins back 20 million years further than previously established. The find confirms that defining anatomical features of modern arachnids were already taking shape during the Cambrian Explosion, half a billion years ago.
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