Can stress damage your heart? A study of 480,000 adults found hidden inflammation, tied to distress, reshapes the heart for years before symptoms show.
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The Plague Kept Coming Back for 400 Years. So Did One Question.
New ancient DNA shows the plague after the Black Death kept returning to Europe for 400 years. In 1527 Luther was asked if you may flee. His answer still holds.
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Botsitting: Why Workers Spend 6.4 Hours a Week Fixing AI
Botsitting is the hidden job AI created: 6.4 hours a week feeding it context, checking it and fixing its mistakes. Here is where those hours actually go.
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Will AI Replace Workers? What Employers Actually Did
Will AI replace workers? A New York Fed survey asked employers what they actually did with AI in 2026, and retraining ran far ahead of layoffs – with a catch.
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Gravitational Constant: The Number Physics Can’t Pin Down
The gravitational constant is the one number physics still cannot pin down: a 10-year NIST experiment, a sealed envelope, and an error bar padded by hand.
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8 Food Preservatives Linked to High Blood Pressure
A study of 112,395 people found eight food preservatives linked to high blood pressure – including the additive on the label that sounds the healthiest.
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Rare Earth Elements in Coal Ash: $8.4 Billion in Waste
Rare earth elements in coal ash may be worth $8.4 billion. But the richest ash gives up the least, and that strange gap is the real story behind the numbers.
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IBD Remission: Feeling Better Isn’t the Same as Healed
IBD remission can hide a smoldering defect. A study in Science found gut cells still primed to die in people with no symptoms at all. Here is what it means.
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MAL Blood Group: The 50-Year Mystery, Finally Named
The MAL blood group closed a 50-year blood mystery in 2024: one 1972 sample, one missing marker, and two decades of work aimed at barely a handful of people.
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What Do Neurons Look Like? Not the Textbook’s Smooth Tube
What do neurons look like? Freeze brain tissue instead of drying it and the smooth textbook cable turns into a string of pearls. Scientists are arguing.