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Obese Woman with fat belly in dieting concept. Overweight woman touching his fat belly and want to lose weight. Fat woman her waist with a centimeter. Shape up healthy stomach muscle and diet lifestyle concept.

Weight Loss Drug Revolution Could Leave Britain’s Poorest Patients Behind

Researchers reveal that gut microbiota metabolizes selenium into products that influence detoxification and excretion.

Gut Microbes Help Decide How Much Selenium Your Body Keeps

Cancer cells

Vaccine Built From Person’s Tumor Is Still Holding Melanoma Back Five Years On

teacher in classroom

When the Teacher Enjoys the Lesson, the Whole Class Does Better at Math

Alcohol-induced mitochondrial changes in liver disease. (A) Human Liver: Staining from a patient with alcohol-associated hepatitis. (B) Mouse Liver: Electron microscopy after alcohol feeding. Arrows show abnormally enlarged mitochondria (megamitochondria). Scale bars: 100 μm (A), 500 nm (B). (C) Mechanism: Alcohol reduces the protein DRP1, stopping normal mitochondrial splitting (fission) and trapping mitochondria in an inactive state (stasis, gray module). Disease Progression: While new megamitochondria temporarily protect the liver by boosting metabolism, chronic alcohol exposure destroys this defense. The damaged mitochondria then leak signals that trigger cell death, severe inflammation (via cGAS–STING), and abnormal cell growth, ultimately driving liver injury and tumors.

Why Some Heavy Drinkers Grow Giant Mitochondria That Guard the Liver, for a While

A photon-modulated synaptic device based on a rare-earth-doped long-afterglow crystal facilitates excitatory (UV-induced) and inhibitory (near-infrared induced) plasticity. This schematic depicts the excitatory impulse wit luminescence as the optical output.

Glowing Material Copies How Your Brain Folds Memory, Sight Together

A freestanding sheet of single‑crystalline silicon nanomembrane is held above a silicon wafer patterned with its first layer of electronic circuits.

To Keep Computers Improving, Engineers Are Building Chips Upward in Stacked Silicon Floors

Justicia carnea

A Garden Shrub Known as Blood Tonic Shielded Mouse Pancreas Cells From Inflammatory Damage

female practicioner

80,000 Doctors and Nurses Caught in America’s Broadest Immigration Ban

modern home with For Sale sign in front

Pandemic Loan Fraud Helped Push Up US House Prices, and Ordinary Buyers Paid for It

PET brain scans from the same individual with early signs of Alzheimer’s disease comparing two tau radiotracers: flortaucipir, shown at top, and the investigational tracer MK6240, shown at bottom. Areas of pathological tau accumulation appear in red. The MK6240 scan shows more extensive tau buildup, suggesting that this tracer may detect Alzheimer’s-related brain changes that are less visible with the standard tracer.

Newer Brain Scan Spots Alzheimer’s Tau Years Before Symptoms, and Twice as Often

A student looks at his phone in the Student Innovation Center at Iowa State University.

Governments Are Banning Teens from Social Media Without Any Evidence It Will Help

Conceptual illustration of the Atom Camera. A single ultracold rubidium (Rb) atom trapped in an optical tweezer is spatially scanned to visualize the intensity and polarization distributions of a light pattern.

Physicists Turn a Single Frozen Atom into a Camera That Sees Light Below the Diffraction Limit

Europe and Japan push supercomputing boundaries

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