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Medical Xpress / Centenarians' blood sheds light on the mechanisms of longevity

In Switzerland, 0.02% of the population lives beyond the age of 100. Could there be biological characteristics associated with this exceptional longevity? As part of the "SWISS100" study, the first large-scale Swiss research ...

3 hours ago in Gerontology & Geriatrics
Phys.org / Diamond surfaces are covered in thin, ice-like water layers

Using atomic-scale defects in diamond, researchers in China have gained unprecedented insights into the complex chemical processes that unfold at the interfaces between solid surfaces and their surroundings. Published in ...

3 hours ago in Nanotechnology
Tech Xplore / Engineers demonstrate lightweight 'exoskeleton' that helps stroke survivors walk

A leading cause of disability in the United States is hemiparesis, a condition where impaired motor control, muscle weakness, and spasticity affect one side of the body. Occurring in 80% of stroke survivors, reduced mobility ...

1 hour ago in Robotics
Medical Xpress / Engineered immune therapy could help fight brain aging

Researchers with the Knight Initiative for Brain Resilience have modified a well-known immune protein to spark the growth of new neurons, ease brain inflammation, and improve cognition in old mice. The findings, published ...

1 hour ago in Neuroscience
Phys.org / Fast-paced lives demand faster vision: Ecology shapes how 'quickly' animals see time

Animals don't just see the world differently from one another, they experience time itself at dramatically different speeds. That is according to a new study that considered 237 species across the animal kingdom, and which ...

7 hours ago in Biology
Medical Xpress / How an anti-obesity drug improves metabolism beyond weight loss

Tirzepatide is one of the drugs that has revolutionized the treatment of obesity and other conditions such as diabetes in recent years. Despite its clinical success, its precise molecular and cellular mechanisms are still ...

1 hour ago in Overweight & Obesity
Phys.org / AI provides a more precise time of death post-mortem

Artificial intelligence can be used to provide a more precise time of death, which could be crucial in murder investigations. The method was developed by researchers at Linköping University and the Swedish National Board ...

3 hours ago in Biology
Medical Xpress / Dopamine selects, astrocytes refine: A new mechanism for motor-learning circuit rewiring

When we learn a new motor skill—whether mastering a piano passage or refining balance while walking—the brain must reorganize the circuits that control movement. For decades, this process of synaptic remodeling has been ...

3 hours ago in Neuroscience
Phys.org / Cannabis essential oils unlock how camphor repels mosquitoes

From summer evenings to global disease prevention, mosquito repellents are a daily defense for billions of people, yet until now, scientists didn't fully understand how mosquitoes themselves perceive these "keep away" signals. ...

2 hours ago in Biology
Medical Xpress / Stimulating mitochondria to boost long-term memory

An international team led by Jaime de Juan-Sanz at the Paris Brain Institute has shown that slightly increasing the metabolic capacity of neurons can enhance long-term memory in both fruit flies and mice. The study, published ...

2 hours ago in Neuroscience
Phys.org / Chemists thought phosphorus had shown all its cards—until it surprised them with a new move

A discovery by UCLA organic chemists may one day put catalytic converter thieves out of business. In new research, they've used abundant, inexpensive phosphorus as a catalyst in chemical reactions that usually require precious ...

2 hours ago in Chemistry
Medical Xpress / Gap in preventable deaths widening between those with, without a college degree

A gap in preventable deaths is growing between people with and without a college degree, a new study says. A steadily increasing number of people with a high school diploma or less are dying from illnesses that could have ...

1 hour ago in Medical economics