Reduced brain volume in people who have experienced COVID-19 resembles brain changes typically seen in older adults. The implications of these findings are not yet clear.

Researchers are piecing together clues to better understand the puzzling array of symptoms in those who never seem to fully recover from COVID-19.

Researchers are taking advantage of tiny hydra's transparency to learn how they sense touch.

New tests with a modified retainer are a first step toward restoring lost oral function with electrical stimulation.

One problem with leg prostheses is that they can feel too heavy. Connecting a prosthesis to the nervous system can change that, researchers say.

Even after a year of wearing and using a prosthetic device, participants in a new study still had a mismatch between what they did and what they felt.

"Until we can understand each component, we can't expect to take the brain apart and put it back together again in order to figure out how it works."