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December 20, 2025

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Deaths of Despair Were Rising Long Before Opioids

Dec. 20, 2025 Long before opioids flooded communities, something else was quietly changing—and it may have helped set the stage for today’s crisis. A new study finds that as church attendance dropped among middle-aged, less educated white Americans, deaths ...

Sugar-free Sweeteners May Still Be Harming Your Liver

Dec. 20, 2025 Sorbitol, a popular sugar-free sweetener, may not be as harmless as its label suggests. Researchers found it can be turned into fructose in the liver, triggering effects similar to regular sugar. Gut bacteria can neutralize some of it—but too much ...

The 98% Mystery: Scientists Just Cracked the Code on “Junk DNA” Linked to Alzheimer’s

Dec. 19, 2025 Researchers have revealed that so-called “junk DNA” contains powerful switches that help control brain cells linked to Alzheimer’s disease. By experimentally testing nearly 1,000 DNA switches ...

Scientists Found a New Way to Slow Aging Inside Cells

Dec. 19, 2025 A small tweak to mitochondrial energy production led to big gains in health and longevity. Mice engineered to boost a protein that helps mitochondria work more efficiently lived longer and showed better metabolism, stronger muscles, and healthier ...

Neurons Aren’t Supposed to Regrow but These Ones Brought Back Vision

Dec. 19, 2025 After injury, the visual system can recover by growing new neural connections rather than replacing lost cells. Researchers found that surviving eye cells formed extra branches that restored communication with the brain. These new pathways worked ...

A Stunning New Forecast Shows When Thousands of Glaciers Will Vanish

Dec. 19, 2025 New research reveals when glaciers around the world will vanish and why every fraction of a degree of warming could decide their ...

The Western U.S. Tried to Stop Wildfires and It Backfired

Dec. 18, 2025 Much of the western U.S. is overdue for wildfire, with decades of suppression allowing fuel to build up across millions of hectares. Researchers estimate that 74% of the region is in a fire deficit, meaning far more land needs to burn to restore ...

A Hidden T Cell Switch Could Make Cancer Immunotherapy Work for More People

Dec. 18, 2025 Scientists have discovered that T cell receptors activate through a hidden spring-like motion that had never been seen before. This breakthrough may help explain why immunotherapy works for some cancers and how it could be improved for ...

He Ate a Hamburger and Died Hours Later. Doctors Found a Shocking Cause

Dec. 17, 2025 A rare tick-borne allergy linked to red meat has now been confirmed as deadly for the first time. A healthy New Jersey man collapsed and died hours after eating beef, with later testing revealing a severe allergic reaction tied to alpha-gal, a sugar ...

A New Test Could Reveal Alzheimer’s Before Symptoms Appear

Dec. 17, 2025 Scientists at Northern Arizona University are developing a promising new way to detect Alzheimer’s disease earlier than ever before—by tracking how the brain uses sugar. Using tiny particles in the blood called microvesicles, researchers may ...

Anxiety and Insomnia Linked to Sharp Drops in Key Immune Cells

Dec. 15, 2025 Natural killer cells act as the immune system’s rapid-response team, but the stress of anxiety and insomnia may be quietly thinning their ranks. A study of young women in Saudi Arabia found that both conditions were linked to significantly fewer ...

Harvard Gut Discovery Could Change How We Treat Obesity and Diabetes

Dec. 14, 2025 Scientists found that certain molecules made by gut bacteria travel to the liver and help control how the body uses energy. These molecules change depending on diet, genetics, and shifts in the microbiome. Some even improved insulin response in ...

Latest Headlines

updated 11:39am EST

This “mushroom” Is Not a Fungus, It’s a Bizarre Plant That Breaks All the Rules

Dec. 20, 2025 Balanophora is a plant that abandoned photosynthesis long ago and now lives entirely as a parasite on tree roots, hidden in dark forest undergrowth. ...

NASA Just Caught a Rare Glimpse of an Interstellar Comet

Dec. 20, 2025 An instrument aboard NASA’s Europa Clipper spacecraft captured rare ultraviolet observations of an interstellar comet while Earth-based telescopes were blinded by the Sun. The spacecraft’s unique ...

What Scientists Found Inside Titan Was Not What Anyone Expected

Dec. 20, 2025 For years, scientists thought Saturn’s moon Titan hid a global ocean beneath its frozen surface. A new look at Cassini data now suggests something very different: a thick, slushy interior with ...

An 11-Year-Old Needed Two New Organs and Doctors Made History

Dec. 19, 2025 In a rare and historic achievement, Children’s Hospital Colorado successfully completed its first dual heart and liver transplant in a pediatric patient. The life-saving surgery was performed on ...

Helping Others for a Few Hours a Week May Slow Brain Aging

Dec. 19, 2025 Spending a few hours a week helping others may slow the aging of the brain. Researchers found that both formal volunteering and informal acts, like helping neighbors or relatives, were linked to ...

Ancient Oceans Were Ruled by Super Predators Unlike Anything Today

Dec. 19, 2025 Long before whales and sharks, enormous marine reptiles dominated the oceans with unmatched power. Scientists have reconstructed a 130-million-year-old marine ecosystem from Colombia and found ...

Glowing Neurons Let Scientists Watch the Brain Work in Real Time

Dec. 19, 2025 A new bioluminescent tool allows neurons to glow on their own, letting scientists track brain activity without harmful lasers or fading signals. The advance makes it possible to watch individual ...

From Biting Flies to Feathered Dinosaurs, Scientists Reveal 70 New Species

Dec. 19, 2025 Researchers announced over 70 new species in a single year, including bizarre insects, ancient dinosaurs, rare mammals, and deep-river fish. Many were found not in the wild, but in museum ...

Earth May Have Been Ravaged by “invisible” Explosions from Space

Dec. 19, 2025 Cosmic “touchdown airbursts” — explosions of comets or asteroids above Earth’s surface — may be far more common and destructive than previously thought, according to new research. Unlike ...

Gravitational Waves May Reveal Hidden Dark Matter Around Black Holes

Dec. 19, 2025 Gravitational waves from black holes may soon reveal where dark matter is hiding. A new model shows how dark matter surrounding massive black holes leaves detectable fingerprints in the waves ...

The Real Reason Incomes Rise and Why They Drop

Dec. 20, 2025 Getting ahead financially is mainly about what you earn at work, not what you make from investments. Researchers found that promotions, skills, and better jobs drive most upward income movement. But ...

Your Body Feels Cold in Two Different Ways

Dec. 18, 2025 Researchers have uncovered that the body uses different molecular systems to sense cold in the skin versus internal organs. This explains why surface chills feel very different from cold experienced ...

The Gear Meant to Protect Firefighters May Carry Hidden Dangers

Dec. 18, 2025 Firefighter turnout gear is designed to shield first responders from extreme heat and danger, but new research suggests it may also introduce chemical exposures. A U.S. study found that brominated ...

AI Detects Cancer but It’s Also Reading Who You Are

Dec. 17, 2025 AI tools designed to diagnose cancer from tissue samples are quietly learning more than just disease patterns. New research shows these systems can infer patient demographics from pathology slides, ...

This Tiny Protein Helps Control How Hungry You Feel

Dec. 17, 2025 Researchers have identified a previously overlooked protein that helps regulate appetite and energy use in the body. This “helper” protein supports a key system that decides whether the body ...

1.5-Million-Year-Old Fossil Face Is Forcing a Rethink of Human Origins

Dec. 16, 2025 Scientists have digitally reconstructed the face of a 1.5-million-year-old Homo erectus fossil from Ethiopia, uncovering an unexpectedly primitive appearance. While its braincase fits with classic ...

A Loud Minority Makes the Internet Look Far More Toxic Than It Is

Dec. 17, 2025 People think online platforms are overflowing with toxic and misleading content, but the reality is far calmer. A small group of highly active users creates most of the harm, while the majority ...

Living Cells May Generate Electricity from Motion

Dec. 16, 2025 Cells may generate their own electrical signals through microscopic membrane motions. Researchers show that active molecular processes can create voltage spikes similar to those used by neurons. ...

AI Learns to Decode the Diseases Written in Your DNA

Dec. 16, 2025 A newly developed AI can predict which diseases specific genetic mutations are likely to cause, not just whether they are harmful. The breakthrough could speed up diagnoses and open new paths for ...

AI Found a Way to Stop a Virus Before It Enters Cells

Dec. 15, 2025 Researchers discovered a hidden molecular “switch” that herpes viruses rely on to invade cells. By combining AI, simulations, and lab experiments, they identified and altered a single amino acid ...

New Orbital Clue Reveals How Hot Jupiters Really Formed

Dec. 15, 2025 Hot Jupiters were once cosmic oddities, but unraveling how they moved so close to their stars has remained a stubborn mystery. Scientists have long debated whether these giants were violently flung ...

Light-Printed Electrodes Turn Skin and Clothing Into Sensors

Dec. 15, 2025 Researchers in Sweden have unveiled a way to create high-performance electronic electrodes using nothing more than visible light and specially designed water-soluble monomers. This gentle, ...

Cannabis Compounds Show Unexpected Power Against Ovarian Cancer

Dec. 15, 2025 Scientists have discovered that key compounds from cannabis—CBD and THC—show surprisingly strong effects against ovarian cancer cells. Used together, they slow cell growth, reduce colony ...

Giant Sea Monsters Lived in Rivers at the End of the Dinosaur Age

Dec. 15, 2025 Giant mosasaurs, once thought to be strictly ocean-dwelling predators, may have spent their final chapter prowling freshwater rivers alongside dinosaurs and crocodiles. A massive tooth found in North ...

Indoor Tanning Triples Melanoma Risk and Seeds Broad DNA Mutations

Dec. 15, 2025 Researchers discovered that tanning beds cause widespread, mutation-laden DNA damage across almost all skin, explaining the sharply increased melanoma risk. Single-cell genomic analysis revealed ...

Stem Cell Pain Sponge Soaks Up Osteoarthritis Joint Pain and Protects Cartilage

Dec. 15, 2025 SereNeuro Therapeutics revealed promising results for SN101, a first-in-class iPSC-derived therapy designed to treat chronic osteoarthritis pain while protecting joint tissue. Instead of blocking ...

A Clear New Material Could Make Windows Super Efficient

Dec. 13, 2025 MOCHI uses microscopic, air-filled channels to stop heat in its tracks while remaining nearly crystal clear. If scaled up, it could transform windows into powerful energy savers and solar ...

Astronomers Watched a Sleeping Neutron Star Roar Back to Life

Dec. 14, 2025 Astronomers tracked a decade of dramatic changes in P13, a neutron star undergoing supercritical accretion. Its X-ray luminosity rose and fell by factors of hundreds while its rotation rate ...

Webb Finds a Hidden Atmosphere on a Molten Super-Earth

Dec. 14, 2025 Webb’s latest observations reveal a hellish world cloaked in an unexpected atmosphere: TOI-561 b, an ultra-hot rocky planet racing around its star in under 11 hours. Despite being blasted by ...

A Silent Ocean Pandemic Is Wiping out Sea Urchins Worldwide

Dec. 12, 2025 A sudden, unexplained mass die-off is decimating sea urchins around the world, including catastrophic losses in the Canary Islands. Key reef-grazing species are reaching historic lows, and their ...