Age does not stop nerve healing after spinal cord injury

A study published on December 23, 2025, in Neurology, the medical journal of the American Academy of Neurology, examined how age may influence recovery following a spinal cord injury. “With population growth and improvements in medicine, the number of people diagnosed with spinal cord injury is increasing and the average…

New antibiotic pill shows promise against drug-resistant gonorrhea

Researchers are testing a new oral medication called zoliflodacin that could offer a simpler way to treat gonorrhea, especially strains that no longer respond well to existing antibiotics. In a late-stage phase 3 clinical trial published in The Lancet, scientists found that a single dose of this pill worked just…

A hidden brain problem may be an early warning for Alzheimer’s

Scientists from Nanyang Technological University, Singapore (NTU Singapore) have found that the brain’s waste removal system often becomes blocked in people who show early signs of Alzheimer’s disease. These blockages interfere with the brain’s ability to clear harmful substances and may appear well before clear dementia symptoms develop. The clogged…

Diabetes drugs may be changing cancer in surprising ways

Researchers are taking a closer look at how medications used to treat diabetes may also influence cancer. While diabetes itself has long been associated with higher cancer risk, scientists are now investigating whether diabetes drugs play a direct role beyond controlling blood sugar levels and body weight. A recent review…

A new gel could help people get their voices back

Researchers at McGill University have developed a new hydrogel that may one day help people recover from vocal cord injuries. Early results suggest the material could offer a better option for restoring damaged voices than treatments currently in use. Voice loss often becomes permanent when scar tissue forms on the…

A “herculean” genetic study just found a new way to treat ADHD

Attention disorders such as ADHD occur when the brain has trouble separating meaningful signals from constant background input. The brain continuously processes sights, sounds, and internal thoughts, and focus depends on its ability to ignore distractions while responding to what matters. Most current treatments improve attention by increasing activity in…

Did an exploding comet wipe out the mammoths?

Scientists are continuing to strengthen the case that a fragmented comet exploded in Earth’s atmosphere nearly 13,000 years ago. This event may have played a role in the sudden disappearance of mammoths, mastodons, and many other large Ice Age animals, as well as the abrupt loss of the Clovis culture…

This tiny plant is helping solve crimes

Small plants like moss rarely draw attention. Many species are no wider than an eyelash and typically grow close to the ground in damp, shaded environments. Despite their modest appearance, these plants can provide critical evidence in criminal investigations. Scientists experienced this firsthand in 2013, when they were asked to…

This tiny nerve may help keep the heart young

New research suggests that one of the most important keys to a healthier and more youthful heart may be the vagus nerve. A study coordinated by the Sant’Anna School of Advanced Studies in Pisa and published in Science Translational Medicine found that maintaining vagal nerve connections to the heart on…

A planet just vanished. NASA’s Hubble reveals a violent cosmic secret

Astronomers using NASA’s Hubble Space Telescope (HST) have witnessed the surprising aftermath of massive space rocks smashing into each other in a nearby planetary system. What initially looked like a reflective exoplanet turned out to be something far more dramatic. Researchers first noticed a bright point of light and assumed…

Something hidden deep underground supercharged this Chile earthquake

In July 2024, a magnitude 7.4 earthquake hit near the city of Calama in northern Chile. The shaking damaged buildings and disrupted electrical power across the region. Chile is no stranger to major earthquakes. The country experienced the strongest earthquake ever recorded in 1960, when a magnitude 9.5 megathrust event…

A hidden chemical war is unfolding inside spruce trees

Spruce bark contains high levels of phenolic compounds that help protect trees from harmful fungi. Researchers at the Max Planck Institute for Chemical Ecology in Jena wanted to understand how these chemical defenses move through the forest food web. Their work focused on the spruce bark beetle (Ips typographus), which…

Myth busted: Your body isn’t canceling out your workout

Physical activity continues to affect the body even after the movement itself has ended. A new study published in the Proceedings of the National Academy of Sciences reports that being physically active increases the total amount of energy a person uses each day. The research, led by scientists at Virginia…

A key Alzheimer’s gene emerges in African American brain study

Alzheimer disease (AD) affects African Americans (AA) at roughly twice the rate seen in White or European-ancestry (EA) individuals living in the U.S. Researchers attribute part of this disparity to social and structural factors, including unequal access to health care, differences in educational opportunities, and known biases in cognitive testing.…

NASA’s Webb telescope just discovered one of the weirdest planets ever

Scientists using NASA’s James Webb Space Telescope have identified a previously unknown kind of exoplanet, one whose atmosphere defies current ideas about how planets are supposed to form. The newly observed world has a stretched, lemon-like shape and may even contain diamonds deep inside. Its strange characteristics make it difficult…

This 100-year-old teaching method is beating modern preschools

The first nationwide randomized study of children enrolled in public Montessori preschools found that students showed stronger learning outcomes by the time they reached kindergarten. Compared with children who attended non-Montessori programs, Montessori students performed better in reading, memory, and executive function. The results also carry clear implications for education…

MIT study shows high-fat diets give liver cancer a dangerous head start

A diet high in fat is one of the strongest contributors to liver cancer risk. New research from MIT sheds light on why this happens, showing that fatty diets can fundamentally alter liver cells in ways that make cancer more likely to develop. The researchers discovered that when the liver…

Nearly 70% of U.S. adults could now be classified as obese

A newly proposed definition of obesity could significantly increase the number of Americans considered to have the condition. According to researchers at Mass General Brigham, applying updated criteria developed earlier this year by the Lancet Diabetes and Endocrinology Commission raises the estimated obesity rate in the United States from about…

Astronomers ring in the new year with a stunning galaxy collision

Ring in the New Year with the “Champagne Cluster,” a distant galaxy cluster featured in a new image that combines data from NASA’s Chandra X-ray Observatory and optical telescopes. Astronomers first identified this galaxy cluster on Dec. 31, 2020. That date, along with the cluster’s bubbly look and the superheated…

New images reveal what really happens when stars explode

Astronomers have obtained remarkably detailed images of two stellar explosions — called novae — just days after they began. The new observations offer clear proof that these outbursts are not as simple as once believed. Instead of a single blast, the explosions can send out more than one stream of…

A missing protein may be aging your immune system

As people grow older, visible changes like gray hair and weaker muscles are only part of the story. Aging also affects the immune system. One major reason is that the stem cells responsible for producing blood and immune cells can accumulate genetic mutations over time, increasing the risk of cancer…

This strange ancient snake was hiding in a museum for decades

An extinct snake is finally getting its moment in the spotlight, more than 40 years after its fossils were first found. Scientists have now identified those bones as a brand new species called Paradoxophidion richardoweni, and it could help explain where today’s most “advanced” snakes came from. In 1981, researchers…

Researchers find ADHD strengths linked to better mental health

Adults with ADHD who are aware of their personal strengths and actively use them tend to report better overall well-being, a higher quality of life, and fewer mental health challenges, according to a new international study. The research was released during October’s ADHD Awareness Month, which this year highlights “the…

Microplastics are leaking invisible chemical clouds into water

Researchers have found that microplastics drifting through rivers, lakes, and oceans constantly release a complex blend of dissolved organic chemicals into the water. This chemical leakage continues over time and becomes much more intense when plastics are exposed to sunlight. The new findings offer the most detailed molecular-level picture so…

Scientists just found the best places to look for ancient life on Mars

Long before Mars became the cold, dry world we see today, rain once fell across its surface. Water gathered in low-lying valleys and river channels, overflowed crater rims, and rushed through canyons. Some of that water may have traveled far enough to reach a vast ocean that once covered part…

Even one drink a day may raise mouth cancer risk

A large comparative study published online in the open access journal BMJ Global Health has found that even low daily alcohol consumption is linked to a much higher risk of mouth cancer in India. Drinking just 9 g of alcohol per day, about the amount in one standard drink, was…

What cannabis really does for chronic pain

A large review of medical studies examined whether cannabis-based products can help people living with chronic pain, a condition defined as pain that lasts for months or even years. The analysis included data from more than 2,300 adults and focused on products containing different amounts of two well-known cannabis compounds:…

Where you live may be fueling aggressive breast cancer

New research from Sylvester Comprehensive Cancer Center at the University of Miami Miller School of Medicine suggests that women who live near federally designated Superfund sites face a higher risk of developing aggressive forms of breast cancer — including triple-negative breast cancer, which is especially difficult to treat. Previous research…

Scientists replayed evolution and found a surprise

All living things must survive in environments that are constantly changing. Seasons shift from summer to winter, and weather patterns can swing from floods one year to drought the next. Populations of plants and animals are always dealing with new pressures, explains University of Vermont scientist Csenge Petak. What remains…

Earth’s worst extinction was followed by a shockingly fast ocean comeback

Scientists have uncovered more than 30,000 fossilized teeth, bones, and other remains on the remote Arctic island of Spitsbergen. The fossils come from a 249 million year old marine community that included extinct reptiles, amphibians, bony fish, and sharks. Together, they document one of the earliest known expansions of land-dwelling…