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Electrical implants allowed a brain-damaged man to talk, eat, and move again.
Humans may have once walked the Earth with tiny people—a possible newly discovered species that scientists have nicknamed "hobbits."
If you drop a sandwich on the floor, how quickly does it pick up bacteria?
A new kind of vaccine that's made in caterpillar cells prevents influenza.
Surprise your teacher: New studies show that chewing gum might be good for you!
Variation in the length of one gene affects how well you function when short of sleep.
Our ancient ancestors had long childhoods, just as we do today.
A new way of repairing a common knee injury might someday help athletes recover faster.
Knowing the number of calories in your restaurant meal can help you make healthier food choices.
A good mood and a relaxed attitude help keep colds away.
Hot peppers and spider venom can cause the same sort of painful burning sensation.
This year's top young scientists faced medical challenges in labs at the National Institutes of Health.