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A new brain-imaging study has revealed how ketamine produces its fast antidepressant effects in people with treatment-resistant depression. Researchers tracked changes in a critical brain receptor that helps neurons communicate and found that ...

While exploring ancient seabeds in Morocco, scientists discovered strange wrinkle-like textures in deep-water sediments that shouldn't have been there. These structures are usually made by sunlight-loving microbial mats in shallow waters. But the ...

A massive UK study of more than 165,000 dementia patients has uncovered troubling new evidence about risperidone, a commonly used drug for severe agitation. Researchers found the antipsychotic increases stroke risk in dementia patients across the ...

A growing trend called "fibermaxxing" is putting dietary fiber in the spotlight--and for good reason. Fiber plays a powerful role in keeping the body healthy, from supporting digestion and feeding beneficial gut microbes to helping regulate blood ...

Satellites are giving scientists a powerful new way to watch over the world's bridges. Using radar imaging, researchers can detect millimeter-scale movements that may signal early structural problems long before inspectors notice them. The study ...

Scientists are exploring a new way to harness the medical promise of psychedelic compounds without the mind-bending side effects. Researchers created modified versions of psilocin -- the active form of psilocybin from "magic mushrooms" -- that still ...

Scientists have uncovered a surprising new role for little-known brain cells called tanycytes that may influence the development of Alzheimer's disease. These specialized cells appear to help remove toxic tau protein from the brain by transporting it ...

Scientists have revealed how the body's microscopic cold sensor, TRPM8, detects both chilly temperatures and the cooling effect of menthol. The discovery finally shows how the sensation of "cool" works at the molecular level--and could inspire new .. ...

Physicists have discovered a surprising new "Island of Inversion" in a place no one expected: among nuclei where the number of protons equals the number of neutrons. For decades, these strange regions--where atomic nuclei abandon their usual orderly ...

Asteroids with tiny moons may be quietly trading material across space. Images from NASA's DART mission revealed faint streaks on the moon Dimorphos--evidence of slow "cosmic snowballs" drifting from its parent asteroid, Didymos. The discovery ...