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Although the gut renews itself constantly, its stem cells accumulate age-related molecular changes that quietly alter how genes are switched on and off. Scientists found that this "epigenetic drift" follows a clear pattern and appears in both aging . ...

Sleep isn't just about feeling rested--it may be one of the strongest predictors of how long you live. Researchers analyzing nationwide data found that insufficient sleep was more closely tied to shorter life expectancy than diet, exercise, or ...

New research shows that aging blood can accelerate Alzheimer's-like changes in the brain, while younger blood may offer protection. In mouse experiments, older blood worsened memory performance and increased toxic protein buildup linked to the ...

Pancreatic cancer is notoriously hard to treat, often resisting therapies that target its most common mutations. Researchers have now uncovered a hidden three-part loop that fuels tumor growth, involving the cancer drivers SRSF1, AURKA, and MYC. By . ...

Astronomers have uncovered the long-hidden cause behind Betelgeuse's strange behavior: a small companion star carving a visible wake through the giant's vast atmosphere. Using nearly eight years of observations from NASA's Hubble Space Telescope and ...

Hubble has revealed a strange cosmic object called Cloud-9, a dark matter-dominated cloud with no stars at all. Scientists believe it is a "failed galaxy," a leftover building block from the early Universe that never lit up. Its discovery confirms .. ...

Sugar-loving mouth bacteria create acids that damage teeth, but arginine can help fight back. In a clinical trial, arginine-treated dental plaque stayed less acidic, became structurally less harmful, and supported more beneficial bacteria. These ...

Scientists at USC are launching a new trial to test a tiny stem cell implant that could restore vision in people with advanced dry macular degeneration. The hair-thin patch replaces damaged retinal cells responsible for sharp, central vision. Earlier ...

A large genetic study shows that many people carry DNA sequences that slowly expand as they get older. Common genetic variants can dramatically alter how fast this expansion happens, sometimes multiplying the pace by four. Researchers also identified ...

Foods that rely heavily on preservatives may be doing more than extending shelf life. In a large study spanning more than a decade, people with the highest intake of preservative additives were far more likely to develop type 2 diabetes. The ...