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ScienceDaily

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Breaking science news and articles on global warming, extrasolar planets, stem cells, bird flu, autism, nanotechnology, dinosaurs, evolution...

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https://www.sciencedaily.com

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Technology → Science

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A brain glitch may explain why some people hear voices

19:37
New research suggests that auditory hallucinations in schizophrenia may come from a brain glitch that confuses inner thoughts for external voices. Normally, the brain predicts the sound of its own inner speech and tones down its response. But in people hearing voices, brain activity ramps up instead, as if the voice belongs to someone else. The discovery could help scientists develop early warnin…

The bottled water everyone trusts may be the riskiest

19:37
In Guatemala’s Western Highlands, researchers found that the drinking water people trust most may actually be the riskiest. Bottled water from refillable jugs—seen as the safest choice—was frequently contaminated with harmful bacteria, while protected municipal wells were the cleanest.

Rare rocks beneath Australia reveal the origins of a critical metal

19:37
Rare rocks buried deep in central Australia have revealed how a valuable niobium deposit formed during the breakup of an ancient supercontinent. More than 800 million years ago, tectonic rifting opened pathways that allowed metal-rich magma to rise from the mantle. These unusual rocks contain niobium, a key ingredient in high-strength steel, electric vehicles, and emerging energy technologies. Th…

This one gene may explain most Alzheimer’s cases

19:37
Alzheimer’s may be driven far more by genetics than previously thought, with one gene playing an outsized role. Researchers found that up to nine in ten cases could be linked to the APOE gene — even including a common version once considered neutral. The discovery reshapes how scientists think about risk and prevention. It also highlights a major opportunity for new treatments aimed at a single b…

This 2.6-million-year-old jawbone changes the human story

19:36
A rare fossil discovery in Ethiopia has pushed the known range of Paranthropus hundreds of miles farther north than ever before. The 2.6-million-year-old jaw suggests this ancient relative of humans was surprisingly adaptable, not a narrow specialist as once believed. Instead of being outmatched by early humans, Paranthropus appears to have been just as widespread and resilient. The find forces s…

Europa’s ice may be feeding a hidden ocean that could support life

12:48
Europa’s subsurface ocean might be getting fed after all. Scientists found that salty, nutrient-rich surface ice can become heavy enough to break free and sink through Europa’s icy shell, delivering essential ingredients to the ocean below. The process is fast, repeatable, and works under many conditions. It offers a promising new explanation for how Europa could support life.

Scientists ranked monogamy across mammals and humans stand out

10:07
A new study suggests humans belong in an elite “league of monogamy,” ranking closer to beavers and meerkats than to chimpanzees. By comparing full and half siblings across species and human cultures, researchers found that long-term pair bonding is unusually common in our species. Even societies that permit polygamy show far more monogamy than most mammals. This rare evolutionary shift may have p…

Scientists just overturned a 100-year-old rule of chemistry, and the results are “impossible”

10:07
Chemists at UCLA are showing that some of organic chemistry’s most famous “rules” aren’t as unbreakable as once thought. By creating bizarre, cage-shaped molecules with warped double bonds—structures long considered impossible—the team is opening the door to entirely new kinds of chemistry.

This simple fix makes blockchain almost twice as fast

10:07
Blockchain could make smart devices far more secure, but sluggish data sharing has held it back. Researchers found that messy network connections cause massive slowdowns by flooding systems with duplicate data. Their new “Dual Perigee” method lets devices automatically favor faster connections and ditch slower ones. In tests, it nearly halved delays, making real-time IoT services far more practic…

This new antibody may stop one of the deadliest breast cancers

5:52
Researchers have identified a promising new weapon against triple-negative breast cancer, one of the most aggressive forms of the disease. An experimental antibody targets a protein that fuels tumor growth and shuts down immune defenses, effectively turning the immune system back on. In early tests, the treatment slowed tumor growth, reduced lung metastases, and destroyed chemotherapy-resistant c…

How type 2 diabetes quietly damages blood vessels

22.ledna
Type 2 diabetes becomes more dangerous to the heart the longer a person has it. Researchers found that after several years, red blood cells can begin interfering with healthy blood vessel function. This harmful shift was not present in newly diagnosed patients but emerged over time. A small molecule inside blood cells may help flag rising cardiovascular risk early.

A blood test could reveal Crohn’s disease years before symptoms

22.ledna
A new blood test may reveal Crohn’s disease years before symptoms begin. The test detects an unusual immune response to gut bacteria in people who later develop the condition. By studying healthy relatives of Crohn’s patients, researchers identified early warning signals long in advance. The findings raise hope for earlier diagnosis and future prevention.

The genetic advantage that helps some people stay sharp for life

22.ledna
A new study reveals that super agers over 80 have a distinct genetic edge. They are much less likely to carry the gene most associated with Alzheimer’s risk, even when compared with other healthy seniors. Researchers also found higher levels of a protective gene variant in this group. Together, the findings help explain why some people age with remarkably youthful minds.

Why some people get bad colds and others don’t

22.ledna
Scientists found that nasal cells act as a first line of defense against the common cold, working together to block rhinovirus soon after infection. A fast antiviral response can stop the virus before symptoms appear. If that response is weakened or delayed, the virus spreads and causes inflammation and breathing problems. The study highlights why the body’s reaction matters more than the virus a…

A common vitamin could influence bathroom frequency

22.ledna
Scientists studying genetic data from over a quarter million people have uncovered new clues about what controls how fast the gut moves. They identified multiple DNA regions linked to bowel movement frequency, confirming known gut pathways and revealing new ones. The biggest surprise was a strong connection to vitamin B1, a common nutrient not usually linked to digestion.
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