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A chance discovery at Nagoya University in Japan has shown that a well-known brain enzyme has a hidden ability: It builds a sugar chain on itself, becomes secreted from the cell and deactivates, then switches on outside the ...

Americans spend more than $1 billion annually on fish oil supplements, in part because of purported cognitive benefits from the omega-3 fatty acids they contain, essential nutrients that help form brain cell connections needed ...

Frightened bat rays produce a chemical cue to warn other rays of danger, a well-known anti-predator strategy for bony fish that has not been documented in cartilaginous fish until now. Oregon State University researchers ...

Endometrial cancer is the most common gynecologic cancer, with more than 69,000 cases diagnosed in the U.S. in 2025 and increasing by up to 3% annually. Diagnosis requires an often painful, invasive biopsy that carries a ...

Mayo Clinic researchers have identified a previously unrecognized way the kidneys regulate water balance—an advance that could lead to improved treatments for polycystic kidney disease (PKD) and other disorders. The study, ...

Experiments at Lawrence Livermore National Laboratory's National Ignition Facility (NIF) require breathtaking precision. Each of the 192 lasers is focused to a width of a few millimeters to enter a 3-millimeter hole at the ...

Debris is still raining down on Earth more than 100 million years after the giant cosmic explosion that created it. A study published this week in Nature Astronomy by an international team reached this conclusion using measurements ...

For the first time, researchers at King's College London have discovered a link between chewing sugary gum after consuming vegetables high in nitrate, such as beetroot, spinach and kale, and lowering blood pressure. The study ...

Studies of alcohol's effects on health have offered contradictory findings, with some suggesting a glass of red wine a day is beneficial and others saying even a drop of booze is too much. A new review attempting to clarify ...

Imagine returning to a favorite hiking trail 15 years after your first visit and discovering that many of the plants and animals that once lived there are gone. While these species may still exist elsewhere, these disappearances—known ...

Scientists can learn a lot about a quantum material by watching how it responds to light. In magnetic semiconductors, one especially useful messenger is the exciton: a pairing of a negatively charged electron and the positively ...

Big cats have a big impact. A long-term study showed that when mountain lions began regular visits to a small suburban preserve about 45 miles (72 kilometers) south of San Francisco, they changed the behavior of many other ...