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How Caffeine Protects the Brain From Dementia
Science

How Caffeine Protects the Brain From Dementia

Scientists have identified multiple mechanisms through which caffeine shields the brain from cognitive decline, from blocking adenosine receptors to reducing neuroinflammation. Here's what decades of research reveal about your daily cup.

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Latest articles

How Spacewalks Work—and Why They're So Risky Science

How Spacewalks Work—and Why They're So Risky

Every time an astronaut floats outside a spacecraft, months of preparation and layers of life-saving technology stand between them and the void. Here'...

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What Is the Strait of Hormuz and Why It Matters Economy

What Is the Strait of Hormuz and Why It Matters

A 21-mile-wide chokepoint between Iran and Oman moves roughly one-fifth of the world's daily oil supply. Here is how the waterway works, why it is so...

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How Tropical Peatlands Work—and Why They're Burning Science

How Tropical Peatlands Work—and Why They're Burning

Tropical peatlands store more carbon than all the world's forests combined, yet wildfires in these ecosystems have reached a 2,000-year high. Here's h...

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How Solar Wind Stripped Mars of Its Atmosphere Science

How Solar Wind Stripped Mars of Its Atmosphere

Billions of years ago, Mars had rivers, lakes, and a thick atmosphere. Today it is a frozen desert. The culprit is the solar wind—and the loss of the...

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What Is ECMO and How Does It Keep People Alive? Health

What Is ECMO and How Does It Keep People Alive?

ECMO — extracorporeal membrane oxygenation — is a life-support machine that does the work of the heart and lungs outside the body. Here is how it work...

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How Sharks Form Social Bonds—and Why It Matters Science

How Sharks Form Social Bonds—and Why It Matters

New research overturns the image of sharks as solitary killers. From bull sharks in Fiji to lemon sharks in the Bahamas, science reveals that many spe...

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Zelenskyy in Madrid: Spain Pledges €1 Billion to Ukraine Economy

Zelenskyy in Madrid: Spain Pledges €1 Billion to Ukraine

Ukrainian President Volodymyr Zelenskyy visited Madrid on March 18, 2026, and signed five defense agreements with Spain, which announced a €1 billion...

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Vance to Visit Budapest: Washington Openly Sides with Orbán Economy

Vance to Visit Budapest: Washington Openly Sides with Orbán

U.S. Vice President JD Vance is expected to visit Budapest in the near future to support Viktor Orbán ahead of the April 12 parliamentary elections, s...

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Nawrocki's Veto: Poland Battles for Billions in Arms Funding Economy

Nawrocki's Veto: Poland Battles for Billions in Arms Funding

President Karol Nawrocki has vetoed a law implementing the EU's SAFE instrument, blocking formal access to €43.7 billion in defense loans. The Tusk go...

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"Mr. Nobody Against Putin" Wins Oscar, First for Czech Republic in 30 Years Culture

"Mr. Nobody Against Putin" Wins Oscar, First for Czech Republic in 30 Years

The Czech-Danish documentary "Mr. Nobody Against Putin" won Best Documentary at the 98th Academy Awards. This marks the first Oscar win for a Czech co...

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Merz's Arms Buildup: €600 Billion for Germany Economy

Merz's Arms Buildup: €600 Billion for Germany

Chancellor Friedrich Merz is pushing forward with the largest rearmament program in German post-war history. The 2026 defense budget totals over €108...

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