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Medical Xpress / Antiviral trial ties valacyclovir to faster cognitive decline

New York State Psychiatric Institute and Columbia University Medical Center investigators, with co-authors across additional US centers, report greater cognitive worsening at 78 weeks with valacyclovir than with placebo among ...

Dec 22, 2025 in Medications
Dialog / How sustainability is driving innovation in functionalized graphene materials

Graphene is often described as a wonder material. It is strong, electrically conductive, thermally efficient, and remarkably versatile. Yet despite more than a decade of excitement, many graphene-based technologies still ...

Dec 25, 2025 in Nanotechnology
Phys.org / Toddlers with facial tattoos: How Christianity expanded body art in Nile Valley civilizations

Ancient Nubians who lived between the 7th and 9th centuries tattooed the cheeks and foreheads of their infants and toddlers. This surprising discovery was made during a systematic survey of more than 1,000 human remains from ...

Dec 22, 2025 in Other Sciences
Medical Xpress / Compulsive behaviors may stem from too much (misguided) self-control

A long-held view is that compulsive behaviors involve individuals getting stuck in a "habit loop" that overrides self-control, but new research in rats from the University of Technology Sydney (UTS) suggests this might not ...

Dec 22, 2025 in Psychology & Psychiatry
Phys.org / Cypriot fishermen battle invasive lionfish and turn them into a tavern delicacy

Photis Gaitanos' rough fingers adroitly untangle the venomous spikes of a lionfish from a net, throwing the exotic-looking creature into an ice-filled rubber bin along with other fish from the day's catch.

Dec 27, 2025 in Biology
Phys.org / Mechanism for twisted growth of plant organs discovered

From morning glories spiraling up fence posts to grape vines corkscrewing through arbors, twisted growth is a problem-solving tool found throughout the plant kingdom. Roots "do the twist" all the time, skewing hard right ...

Dec 24, 2025 in Biology
Medical Xpress / Heart-brain connection: International study reveals role of vagus nerve in keeping the heart young

The secret to a healthier and "younger" heart lies in the vagus nerve. A recent study coordinated by the Sant'Anna School of Advanced Studies in Pisa and published in Science Translational Medicine has shown that preserving ...

Dec 24, 2025 in Neuroscience
Phys.org / Arctic sea ice melt slowdown since 2012 linked to atmospheric pattern shift

A research team led by The Hong Kong University of Science and Technology (HKUST) scholars has discovered a significant slowdown in Arctic sea ice melting since 2012, with a decrease rate of 11.3% per decade to an insignificant ...

Dec 23, 2025 in Earth
Phys.org / Africa's rarest carnivore: The story of the first Ethiopian wolf ever captured, nursed and returned to the wild

What's the value of one animal? When a wild animal is found badly injured, the most humane option is often euthanasia to prevent further suffering. That's what usually happens, and often for good reason. Even when the resources ...

Dec 24, 2025 in Biology
Medical Xpress / Stimulant ADHD medications work differently than previously thought

Prescription stimulants, such as Ritalin and Adderall, are widely used to treat attention deficit hyperactivity disorder (ADHD), including in children. In the U.S., about 3.5 million children aged 3 to 17 take an ADHD medication, ...

Dec 24, 2025 in Attention deficit disorders
Medical Xpress / Indoor tanning makes youthful skin much older on a genetic level

Tanning bed users are known to have a higher risk of skin cancer, but for the first time researchers have found that young indoor tanners undergo genetic changes that can lead to more mutations in their skin cells than people ...

Dec 27, 2025 in Genetics
Phys.org / A third path to explain consciousness: Biological computationalism

Right now, the debate about consciousness often feels frozen between two entrenched positions. On one side sits computational functionalism, which treats cognition as something you can fully explain in terms of abstract information ...

Dec 22, 2025 in Biology