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BrainEating disorders: The brain’s foul trickery
Experts on eating disorders are probing why sometimes deadly chemical changes can distort how much the brain says we need to eat.
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Health & MedicineRecovery help from the blogosphere
And some who have been there now are sharing tips on what it takes to become a successful survivor.
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BrainYour sleeping brain is listening
Most people think that sleep is when the brain turns off to rest. But a new study finds that even as people get their zzz’s, their brains remain alert. At least they stay alert enough to sort information as though they were awake.
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AnimalsSharks’ super sniffers at risk
Rising ocean acidity could rob sharks of their ability to sniff out dinner, marine biologists find.
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FossilsBiggest dino ever?
This plant-eater would have towered over even a T. rex. A truly huge brute, Dreadnoughtus means ‘fear nothing.’
By Janet Raloff -
Health & MedicineYou can be too thin
Eating disorders aren’t about vanity. They are mental illnesses that can prove deadly.
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Health & MedicineThe media’s dangerous influence on body image
A study found how powerful TV and ad messages can be in distorting the attitudes about body image among young girls in Fiji.
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ArchaeologyMummies existed before Egypt’s pyramids
Materials from an ancient Egyptian cemetery suggest people were preserving their dead long before the pyramids and pharaohs.
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Health & MedicineWatch out: Cell phones can be addictive
Smartphones and Facebook are convenient. New research shows that for some people they also can become dangerously addictive.
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ClimateWhere will lightning strike?
When lightning strikes, the results can be deadly. But nature’s dazzling light show also can provide scientists with insights into when and where the next thunderbolt might strike.
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EarthSolved: Mystery of the ‘sailing’ rocks
Rocks and boulders periodically move across the Racetrack Playa in Death Valley, leaving tell-tale tracks in their wake. Using advanced technology, scientists have finally solved the mystery of how this happens.
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Health & MedicineEbola update: Signs of hope
The deadly outbreak of Ebola in West Africa is the worst the world has ever seen. Scientists are studying the virus that causes it and testing experimental vaccines and treatments to try to save lives.