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Popis: Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution...
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Just two drinks a day may be far riskier than you think14:06 A major new study reveals that drinking just two alcoholic beverages a day is associated with a 1 in 25 lifetime risk of death from alcohol-related causes, challenging the idea that moderate drinking is harmless. Researchers also found no significant overall health benefits from alcohol, with risks rising as consumption increases. Scientists reveal the hidden danger of missing blood pressure medication14:06 Missing blood pressure medication could mean losing much of its protection against heart attacks and strokes, according to an analysis of more than 91,000 people. Patients who consistently took their medication experienced an 11% reduction in major cardiovascular events, while those who missed too many doses saw little or no measurable benefit. Low-dose aspirin linked to 70% lower dementia risk, but there's a catch14:06 A common, inexpensive medication could hold an unexpected clue to preventing dementia. Researchers found that older adults with a specific genetic profile had a 70% lower relative risk of dementia when taking low-dose aspirin, even though previous studies found no overall protective effect. The discovery suggests that genetics could help explain why some people benefit while others do not. This mysterious mushroom makes people see hundreds of tiny humans14:06 For nearly a century, people in distant parts of the world have reported a bizarre experience after eating certain wild mushrooms: seeing dozens or even hundreds of tiny, colorful humans moving through the real world. Now, scientists have identified a mushroom species, Lanmaoa asiatica, responsible for these extraordinary hallucinations in China and the Philippines. Three giant black holes discovered in a galaxy from the dawn of time14:06 Astronomers have discovered three actively feeding black holes inside a single galaxy more than 12.5 billion light-years away, revealing a remarkable scene from the universe’s infancy. Two of the black holes are separated by just 620 light-years and are expected to eventually merge, while a third lurks farther away. One weighs an astonishing 80 million suns, and another is growing faster than con… New evidence suggests spinosaurus spent most of its life underwater14:06 Millions of years after animals first conquered land, some took an extraordinary evolutionary U-turn and returned to the water. Using machine learning and thousands of fossil measurements, Yale scientists have uncovered surprising clues about which prehistoric creatures truly became aquatic. Their findings suggest that Spinosaurus spent most of its life underwater, while some ancient marine repti… Popular cannabis sleep gummies may have a hidden dark side14:06 A cannabis-derived ingredient commonly found in sleep gummies may be more habit-forming than previously thought, with new research showing that repeated exposure caused tolerance and withdrawal symptoms in mice. Scientists warn that CBN may carry risks similar to THC, although its long-term effects in humans remain largely unknown. Scientists discover how pancreatic cancer rewrites its DNA to escape treatment14:06 Scientists have discovered how pancreatic cancer cells continually reshape their genetic makeup to become more aggressive, spread, and evade treatment. In laboratory experiments, blocking a key gene reversed some of these dangerous changes, revealing a potential new way to fight the deadly disease. Astronomers may have discovered the first moon beyond our Solar System14:06 Astronomers have uncovered evidence of a bizarre, potentially historic discovery: the first moon ever detected beyond our Solar System. Unlike familiar moons, this mysterious object is at least as massive as Jupiter and orbits a brown dwarf, which itself circles a star. The unusual arrangement challenges traditional definitions of planets and moons, leaving scientists unsure what to call it. Scientists discover a hidden flaw that challenges 40 years of superconductor science14:06 A superconducting material studied for 40 years has turned out to be far more complex than scientists believed. Advanced 3D imaging revealed a hidden patchwork of crystal structures, with unusually wide boundaries that may weaken superconductivity. The discovery challenges decades of scientific assumptions and could explain why some superconductors outperform others. Mediterranean diet may boost tiny proteins that protect the heart and brain14:06 Scientists have uncovered a surprising new clue to why the Mediterranean diet is so good for the heart, brain, and healthy aging. Researchers at USC found that older adults who closely followed the diet had higher levels of two tiny proteins, humanin and SHMOOSE, produced by the mitochondria, the energy-producing structures inside cells. These proteins have been linked to protection against heart… A hidden bias in human language challenges 70 years of science24.října A groundbreaking study challenges 70 years of assumptions about how human language works. By analyzing billions of word uses, scientists discovered that meaning is organized around power, danger, and order rather than emotion alone. Even more surprisingly, human language shows a powerful hidden preference for safety, suggesting that our words may reflect ancient survival instincts. NASA’s asteroid Bennu samples reveal a 4.5-billion-year-old secret24.října Tiny samples from asteroid Bennu are rewriting scientists' understanding of how our Solar System formed. New evidence suggests that Bennu was born where material from the inner and outer Solar System mixed, with Jupiter playing a surprising role in shaping its formation. Could lowering high blood pressure be as simple as stimulating your ear?24.října A small device that gently stimulates nerves through the ear could offer a new way to tackle stubborn high blood pressure. In a clinical trial of 63 patients already taking medication, the treatment proved safe, easy to use at home, and well tolerated. Although it did not significantly outperform a placebo overall, patients with more severe hypertension showed promising reductions in blood pressu… Scientists propose a way to detect dangerous “mirror life” before it exists24.října Scientists have proposed a way to detect “mirror life,” a hypothetical form of life that could pose serious risks to humans, animals, and ecosystems if artificially created. Using special fluorescent molecules and a type of polarized light also used in 3D movie technology, researchers believe they could distinguish ordinary organisms from their mirror-image counterparts. |