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Extinct human relatives left a genetic gift that helped people thrive in the Americas

Scientists have discovered that a gene called MUC19, inherited from Denisovans through ancient interbreeding, may have played a vital role in helping Indigenous ancestors adapt as they migrated into the Americas. Found at unusually high frequencies in both modern and ancient populations, the gene likely provided immune advantages against new pathogens. This research highlights how archaic DNA, passed through both Denisovans and Neanderthals, enriched human genetic diversity in ways that still shape us today.

Why irregular sleep puts heart failure patients in danger

Researchers discovered that heart failure patients with inconsistent sleep patterns were more than twice as likely to experience serious setbacks within six months. The risk remained high even when accounting for sleep disorders and other conditions. The team believes improving sleep regularity could be a simple, effective way to boost survival and recovery.

Stopping time in cells exposes life’s fastest secrets

Scientists have developed a groundbreaking cryo-optical microscopy technique that freezes living cells mid-action, capturing ultra-detailed snapshots of fast biological processes. By rapidly immobilizing cells at precise moments, researchers can overcome the limitations of traditional live-cell imaging and gain sharper insights into fleeting events like calcium ion waves in heart cells.

Jupiter’s core isn’t what we thought

For years, scientists thought Jupiter’s strange interior was the result of a massive collision in its youth. But new research suggests that the planet’s diffuse, “fuzzy” core wasn’t born from a cataclysm at all. Instead, the giant appears to have developed this structure gradually as it pulled in both heavy and light elements while forming.

Scientists discover forgotten particle that could unlock quantum computers

Scientists may have uncovered the missing piece of quantum computing by reviving a particle once dismissed as useless. This particle, called the neglecton, could give fragile quantum systems the full power they need by working alongside Ising anyons. What was once considered mathematical waste may now hold the key to building universal quantum computers, turning discarded theory into a pathway toward the future of technology.
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