How does a frog heal wounded skin without scarring?

When a Xenopus frog is deeply wounded, its skin can regenerate without scarring. Researchers have found that cells under the skin contribute to this regeneration after an excision injury.

Shedding light on how humans walk... with robots

Learning how to walk is difficult for toddlers to master; it's even harder for adults who are recovering from a stroke, traumatic brain injury, or other condition, requiring months of intensive, often frustrating physical ...

The science of laughter – and why it also has a dark side

When you hear someone laugh behind you, you probably picture them on the phone or with a friend – smiling and experiencing a warm, fuzzy feeling inside. Chances are just the sound of the laughter could make you smile or ...

BLAST: Greater speed, accuracy in recognizing brain injury

Modern body armor better protects warfighters against shrapnel from explosive blasts. However, they still face a hidden threat—the resulting blast pressure and shock wave that could cause traumatic brain injury (TBI).

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