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Dry eyes are far more common than previously believed, with over half of adults in the US and Europe experiencing symptoms, yet most remain undiagnosed for years. The large-scale NESTS study reveals that sufferers often endure daily discomfort that . ...

A massive study of over 4 million adults has revealed that cannabis use may nearly quadruple the risk of developing diabetes. Despite some earlier suggestions that cannabis might have metabolic benefits, this large analysis found significantly higher ...

New research from Denmark challenges long-held assumptions about body weight and health, revealing that being overweight--or even moderately obese--does not necessarily increase the risk of death compared to those at the upper end of the "normal" BMI ...

By analyzing tooth enamel chemistry, scientists uncovered proof that Jurassic dinosaurs divided up their meals in surprising ways--some choosing buds and leaves, others woody bark, and still others a mixed menu. This dietary diversity helped massive ...

Sweetpotato, a critical food crop for millions, has finally had its genetic code fully decoded after decades of mystery. Scientists unraveled its extraordinarily complex genome of six chromosome sets, revealing a hybrid origin stitched together from ...

GLP-1 drugs like Ozempic have transformed weight loss in the U.S., with nearly 12% of Americans having tried them, according to a new RAND report. Usage is especially high among women aged 50 to 64, while men catch up in older groups. Despite ...

Scientists in Korea have engineered magnetic nanohelices that can control electron spin with extraordinary precision at room temperature. By combining structural chirality and magnetism, these nanoscale helices can filter spins without complex ...

Researchers at UBC have found a way to mimic the elusive Schwinger effect using superfluid helium, where vortex pairs appear out of thin films instead of electron-positron pairs in a vacuum. Their work not only offers a cosmic laboratory for ...

Billions of years ago, Mars may not have been the frozen desert we see today. New simulations suggest that volcanic eruptions pumped out reactive sulfur gases, creating greenhouse effects strong enough to trap warmth and possibly liquid water. This . ...

Astronomers using the James Webb Space Telescope have uncovered mysterious "little red dots" that may not be galaxies at all, but a whole new type of object: black hole stars. These fiery spheres, powered by ravenous black holes at their core, could ...