Billy Joel has excess fluid in his brain -- a neurologist explains what happens when this protective liquid gets out of balance.

Billy Joel has canceled his 2025 concerts after being diagnosed with Normal Pressure Hydrocephalus (NPH), a brain condition ...

NPH occurs when the normal flow of CSF throughout the brain as well as the spinal cord gets blocked in some way. This can be ...

Normal pressure hydrocephalus refers to the buildup of fluid around the brain, and it’s treatable, experts say.