ScienceDaily

Johns Hopkins scientists have uncovered hidden warning signs of Alzheimer’s disease that may appear up to a decade before memory loss begins. Brain scans revealed that two regions involved in memory and emotion start shrinking before the hippocampus, the area doctors typically examine for signs of Alzheimer’s. These early changes are linked to abnormal tau protein buildup and could provide a powe…

ESA’s Euclid space telescope has discovered 31 ancient quasars, including two record-breaking objects that shone with the brightness of a trillion Suns when the Universe was just 670 million years old. Powered by supermassive black holes, these extraordinary cosmic beacons reveal a time when the first galaxies were still taking shape.

Dinosaurs may have been snacking on seaweed and other ocean foods more than 100 million years ago, according to surprising new evidence hidden in their fossilized teeth. Researchers discovered chemical signatures suggesting that coastal dinosaurs and other prehistoric animals relied partly on nutrients originating in the sea. The findings reveal that marine resources traveled through ancient food…

Scientists have discovered how to use flashes of laser light to organize tiny electrical regions inside a crystal, solving a decades-old mystery about how the material behaves. The laser-induced alignment lasts just a trillionth of a second, but the breakthrough could open the door to new ways of processing and storing information.

A groundbreaking drone survey has revealed a startling split in the fate of New Zealand's endangered Erect-crested penguins. While one population has remained stable for decades, another has declined by more than 40%, apparently due to a combination of predators, worsening storms, and changing ocean conditions. Even more surprisingly, the tiny Bounty Islands support nearly as many breeding pairs …

Scientists have uncovered a hidden warning sign in routine heart scans that could predict sudden cardiac death before it strikes. The AI-powered discovery outperformed conventional screening methods, potentially revealing thousands of people at risk of a fatal heart malfunction that doctors might otherwise miss.

A simple change to your daily routine could make a surprising difference in how you feel, both physically and mentally. University of Missouri researchers found that older adults who followed consistent daily schedules reported less physical pain and fewer symptoms of depression, even when they struggled with insomnia. Keeping regular times for sleeping, eating, and other activities may help regu…

Scientists have developed a promising new fiber supplement that improves gut health in people with irritable bowel syndrome (IBS) without worsening bloating, pain, or other digestive symptoms. The specially designed blend also improved gut-related anxiety and produced surprisingly rapid changes in gut bacteria, potentially offering a new way to manage IBS.

Astronomers have uncovered a potentially enormous new dwarf planet beyond Pluto, hidden for years in one of the most crowded regions of the night sky. The discovery of 2026 ED138 could expand the solar system's official dwarf planet family and hints that more mysterious worlds may be lurking far beyond Neptune.

Stanford researchers have discovered that hidden patterns of brain activity can predict Alzheimer’s risk years before memory problems appear, potentially offering an earlier warning than traditional biomarkers. The same patterns also reveal which brains are unusually resistant to aging, raising hopes for future treatments that could help protect memory.

Scientists have developed an efficient method to transform used coffee grounds into a potential source of biodiesel while preserving the leftover material for other renewable fuels and valuable chemicals. The discovery could turn millions of tons of discarded coffee waste into a surprisingly useful resource for sustainable energy.

A new study suggests that the right kind of exercise could help protect young adults from early knee osteoarthritis following ACL surgery. Researchers found that a four-month supervised rehabilitation program improved pain, muscle strength, and quality of life without damaging knee cartilage. The findings challenge fears that exercise worsens injured knees and could transform how patients recover…

Yale researchers have discovered that certain prescription drugs, healthy diets, and exercise can measurably slow biological aging, while popular anti-aging supplements appear largely ineffective. Their analysis of 51 studies could transform how scientists evaluate anti-aging treatments, although whether these biological changes actually extend life remains uncertain.

A 5,000-year-old mystery surrounding the tombs of Egypt’s first kings has taken a disturbing turn. Scientists reexamining 46 ancient skulls discovered evidence of potentially fatal head injuries in 18, suggesting that at least 39% of those studied may have been deliberately killed. The findings support a century-old theory that royal attendants were sacrificed when kings died, possibly to serve t…

Smiling may not always make you happier, and new research suggests that forcing yourself to smile repeatedly could actually make you feel worse. In a University of Florida study involving more than 1,100 participants, researchers discovered that while a single artificial smile can provide a small mood boost, repeatedly faking smiles can erase that benefit or even reverse it.