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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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Researchers found 8 common food additives linked to high blood pressure and heart disease12:52 A major study of more than 112,000 people found that eating foods containing common preservatives may be linked to a higher risk of high blood pressure and heart-related diseases. Researchers tracked participants for up to eight years and discovered that people consuming the highest amounts of certain preservatives had significantly greater risks of hypertension, heart attack, stroke, and other c… These bees have nowhere to hide from extreme heat12:52 A major study of Australian native bees found that stem-nesting species may be the first to feel the impact of climate change. Unlike bees that nest underground, they have few ways to escape dangerous heat. Researchers also discovered that tropical bees are particularly vulnerable, even when they are already adapted to hot environments. The findings suggest bee behavior could be a key factor in d… A surprising discovery reveals the kidney has a secret backup system12:52 Scientists at Mayo Clinic have uncovered a surprising new way the kidneys conserve water, revealing a hidden backup system that works independently of the hormone long believed to control the process. The discovery emerged when researchers testing an old drug called probenecid expected it to worsen polycystic kidney disease (PKD) but found it actually slowed cyst growth instead. Could cosmic memory explain dark matter, dark energy, and black holes?12:52 A new theory suggests the universe is constantly recording its own history in the fabric of spacetime. If correct, this cosmic memory could help solve some of the biggest puzzles in physics, from black holes to dark matter and the universe’s ultimate fate. Humans may have hidden regenerative powers17:12 Scientists have taken a surprising step toward unlocking regeneration in mammals, showing that the ability to rebuild complex body parts may not be lost after all—it may simply be switched off. Using a two-stage treatment, researchers redirected the body’s normal healing response away from scar formation and toward regrowth, successfully restoring bone, joints, ligaments, and tendons after amputa… Scientists discover spider that disguises itself as a parasitic fungus17:12 Scientists have discovered a new Amazonian spider with an astonishing disguise: it looks like a parasitic fungus. The species, Taczanowskia waska, mimics both the appearance and behavior of the fungus, helping it stay hidden from predators and potentially catch prey more easily. Ozempic and Wegovy linked to surprising drop in violent behavior17:12 A Rutgers study suggests GLP-1 drugs such as Ozempic and Wegovy may weaken the link between impulsive tendencies and violent behavior. The surprising finding hints that these medications could affect how people act on impulses, though researchers stress that cause and effect have not been proven. On the brink of extinction, the vaquita gets a digital lifeline17:12 Scientists have digitally preserved the world’s most endangered marine mammal by creating highly detailed 3D models of a vaquita skeleton using advanced imaging technology. The virtual archive provides an unprecedented look at the species and could help inspire conservation efforts before the tiny porpoise disappears forever. Common plastic chemical linked to lifelong anxiety in new study13:36 Exposure to a common plastic chemical before and shortly after birth may have lasting effects on behavior. Researchers found that male rats exposed early in life to DEHP—a plasticizer used in products ranging from medical devices to toys—showed significantly higher anxiety as adults, even long after exposure had ended. The animals were more hesitant to explore open spaces and spent more time froz… Superconductivity breakthrough could unlock ultra-efficient electronics17.června A clever nanoscale redesign may have solved one of superconductivity’s biggest problems. Researchers in Sweden discovered that by subtly sculpting the surface beneath an ultrathin superconducting material, they could make it stay superconducting at higher temperatures and under much stronger magnetic fields. A daily probiotic may help relieve depression and anxiety17.června A small clinical trial suggests that probiotics may offer a surprising mental health boost for older adults with depression. Seniors who took a daily probiotic alongside their regular antidepressant treatment experienced slightly greater improvements in depression and anxiety symptoms than those who received a placebo. New plasma trick could unlock smaller, more powerful computer chips17.června A new technique could solve one of the biggest challenges in making future computer chips from ultrathin materials. Researchers found that coating molybdenum disulfide with oxygen or fluorine lets manufacturers remove just the top layer of atoms much more safely during plasma processing. The result is a cleaner, more controlled path toward smaller and more capable electronics. New procedure delivers lasting knee arthritis pain relief without surgery17.června A minimally invasive treatment that blocks inflammation-driving blood vessels in the knee provided significant pain relief and improved function for osteoarthritis patients, with benefits lasting at least a year. The procedure was safe, highly successful, and could offer a new alternative for people seeking relief before considering knee replacement. Scientists say most of what’s in your food is still a mystery17.června Scientists are beginning to explore a hidden world of thousands of food chemicals that go far beyond the nutrients listed on nutrition labels. This “nutritional dark matter” may hold the key to understanding disease risk, healthy aging, and why different diets affect people in dramatically different ways. 10 surprising ways diabetes and dementia are connected17.června Diabetes and dementia appear to be closely intertwined, with each condition potentially influencing the other. Problems with insulin and glucose can affect the brain’s energy supply, increase inflammation, and damage blood vessels linked to memory loss. Researchers are also finding that some popular diabetes medications may lower dementia risk. These discoveries are opening new possibilities for … |