Nicholas Brendon was open with fans about his health before his untimely death at 54. The actor, best known for playing the lovable and wisecracking Xander Harris on “Buffy the Vampire Slayer,” died ...

Treatments that target a fragment of the mutant protein that causes Huntington's disease might be more effective than treatments—now in clinical trials—that target the whole protein but leave this ...

Transit Officer Paul DeGeorge thought his son was lying on him. Then he realized something much scarier was happening.

An immune-related gene has now been tied to a rare inherited neurological disorder, revealing an overlooked pathway in the nervous system.