For the first time, scientists pinpoint the brain cells behind depression

Researchers at McGill University and the Douglas Institute have discovered that two distinct types of brain cells function differently in people with depression. The findings, published in Nature Genetics, offer important clues that could lead to new treatments designed to target these specific cells. They also provide a clearer understanding…

Simple “gut reset” may stop weight gain after Ozempic or Wegovy

A minimally invasive outpatient procedure may help people avoid regaining weight after stopping popular medications like Ozempic and semaglutide, according to research being presented at Digestive Disease Week® (DDW) 2026. About 70% of people who stop these drugs eventually regain much of the weight they lost, often within 18 months.…

This new brain-like chip could slash AI energy use by 70%

Scientists have created a new type of nanoelectronic device that could significantly reduce how much energy artificial intelligence systems consume. The innovation works by copying how the human brain processes information, offering a more efficient alternative to today’s power-hungry AI hardware. The research team, led by the University of Cambridge,…

Scientists discover hidden forces are warping Earth deep beneath the surface

Far beneath Earth’s surface, slow-moving convection currents churn within the mantle. These currents are closely tied to the movement of tectonic plates, and they do more than just shift the plates above. They also stretch and distort the mantle material itself. A new study published in The Seismic Record shows…

This ancient crocodile relative grew up on four legs then walked on two

A newly described prehistoric reptile is giving scientists a surprising look at how some ancient animals may have changed the way they moved as they grew. Researchers say this “peculiar” crocodile relative likely began life walking on four legs, only to adopt a two-legged stance as it reached adulthood. The…

289-million-year-old mummified reptile reveals how breathing began on land

Every breath you take is part of a very ancient story. The steady movement of your chest, the muscles between your ribs pulling outward, and the air filling your lungs feel completely routine. Yet this familiar process traces back hundreds of millions of years. A remarkably preserved reptile that died…

Scientists create plastic that destroys viruses on contact

Scientists have created a thin plastic film that can physically destroy viruses the moment they land on its surface. The breakthrough could help reduce the spread of disease from frequently touched items like smartphones, keyboards, and hospital equipment. Beyond its effectiveness, the material is also designed to be practical for…

This simple fatty acid could restore failing vision

Changes in eyesight are one of the most common signs of aging. Sit in a dimly lit restaurant with someone over 60, and you will likely hear them say, “Hold on — let me pull out my cell phone. I need more light to read the menu!” But what if…