How Nasal Spray Vaccines Work and Why They Matter
Nasal spray vaccines work by training the immune system at the exact point where viruses enter the body — the nose and airways — creating a line of de...
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Biology
52 articles with this tag
Earth's Biodiversity Boom: 16,000 New Species Found Yearly
A landmark University of Arizona study in Science Advances finds scientists are identifying more than 16,000 new species every year — the fastest rate...
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Science
How Archaeologists Decode Ancient Mass Graves
When archaeologists uncover a prehistoric mass grave, a battery of modern forensic techniques—from isotopic analysis to ancient DNA—can reconstruct wh...
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Science
What Are Cryptic Species and How Are They Found?
Beneath the surface of Earth's known biodiversity hides a vast shadow catalogue of look-alike species, genetically distinct but visually indistinguish...
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Health
What Is T Cell Exhaustion and Why It Limits Cancer Immunotherapy
T cell exhaustion is a state in which the immune system's most powerful cancer-fighting cells lose their killing ability. Understanding this process i...
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Science
Why Dogs and Humans Share the Same Behavior Genes
A landmark study of 1,300 golden retrievers found that the same genes driving canine anxiety, trainability, and aggression also shape human depression...
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Health
What Did Paleolithic Humans Actually Eat?
The modern paleo diet promises to replicate what our Stone Age ancestors ate — but archaeology tells a far more complex story. Early humans were flexi...
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Science
How Bone Rings Reveal Dinosaur Age and Growth
Just like tree rings record years of growth, microscopic lines inside dinosaur bones hold the key to understanding how long these giants lived and how...
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Health
CBD and CBG: New Hope for Fatty Liver Disease
Israeli scientists have discovered that the non-intoxicating cannabis compounds CBD and CBG improve liver health through two cellular mechanisms: boos...
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Science
Nature's Engine Slows: Species Turnover Down by a Third
A landmark global study finds that the rate at which species replace each other in ecosystems has slowed by roughly one-third since the 1970s — a para...
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Health
How HIV PrEP Works: From Daily Pills to 6-Month Shots
Pre-exposure prophylaxis (PrEP) has transformed HIV prevention. Here's how it works — from blocking the virus in your bloodstream to the breakthrough...
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Health
How HIV Prevention Drugs Work: From Pills to Injections
PrEP medications have transformed HIV prevention from near-certain infection to near-zero risk. Here's how these drugs block the virus—and why a new t...
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