Huntington’s disease is a rare genetic disorder affecting movement, memory, and mood. Here’s what we know—and what’s ahead.

The actor Eric Dane says he can no longer use his right arm because of ALS, a degenerative brain disease that slowly robs ...

A mysterious disease swept the world in the early 1920s that put people into catatonic states; stiff and immovable like human ...

ALS, short for amyotrophic lateral sclerosis, is a degenerative neurological disorder that eventually leads to paralysis, taking away a person's ability to move, speak, swallow or even breathe, ...