Category Biology/Biotechnology

Scientists just discovered what coffee is really doing to your gut and brain

c Decaf even improved learning and memory, while caffeine boosted focus and reduced anxiety. Together, they show coffee works through multiple pathways beyond just caffeine.

Researchers at APC Microbiome Ireland, a leading research center at University College Cork, have taken a major step toward understanding how coffee benefits the body. For the first time, scientists have closely examined how coffee interacts with the gut-brain axis, the communication network that links the digestive system and the brain.

The findings, published in Nature Communications and supported by the Institute for Scientific Information on Coffee (ISIC), show that regularly drinking both caffeinated and decaffeinated coffee can shape the gut microbiome and influence mood and stress.

How Coffee Affec...

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Scientists may have found the brain’s switch for chronic pain

Scientists may have found the brain’s “pain switch”—and how to turn it off. New research from the University of Colorado Boulder points to a little-known brain circuit that may determine whether short-term pain fades away or becomes a long-lasting problem. The findings suggest that this pathway plays a key role in turning temporary pain into chronic pain that can persist for months or even years.

The study, conducted in animals and published in the Journal of Neuroscience, focused on a region called the caudal granular insular cortex (CGIC). Researchers found that shutting down this circuit can both prevent chronic pain from developing and stop it after it has already begun.

“Our paper used a variety of state-of-the art methods to define the specific brain circuit crucia...

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Dietary fats shape pancreatic cancer risk via ferroptosis

For decades, the relationship between fat and cancer has been treated as a question of quantity: Eat less fat, reduce your risk of developing cancer. But new research published April 29 in Cancer Discovery shows that for pancreatic cancer, the type of fat you consume matters more than the amount.

“It’s really the type of fat that you’re consuming, not just total fat content,” says Christian Felipe Ruiz, Ph.D., an associate research scientist in YSM’s Department of Genetics and lead author of the study. “Depending on the type of fat that you consume, it can go completely different ways. We found that some fats promote cancer, as we would expect, while other fats are really good at suppressing cancer.”

One fat in particular—oleic acid, the primary fatty acid in olive oil—may be ac...

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Battery-free skin-conformal wearable system can measure electrocardiogram signals

SNU researchers develop battery-free skin-conformal wearable system
Concept of body-coupled wireless power delivery for battery-free wearables. Credit: Science Advances

A research team led by Prof. Jerald Yoo from the Department of Electrical and Computer Engineering at Seoul National University (SNU) has developed a skin-conformal wearable health care system, “SkinECG,” capable of measuring electrocardiogram (ECG) signals without a battery. By combining energy harvesting with human body–coupled power transfer, the study presents a new solution to one of the most critical challenges in wearable devices: power supply.

The findings are published in Science Advances.

Wearable health care systems are emerging as next-generation medical technologies that enable real-time monitoring of physiological signals through body-worn sensors, allowing early ...

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