Divergent diagnostic criteria is raising concerns that some patients are being misdiagnosed and unnecessarily treated.

A common type of irritating eye bacteria can linger in the body for many years after your symptoms have lifted, potentially contributing to a devastating cognitive decline ...

A young footballer has died after contracting the deadly hantavirus while volunteering to help people affected by wildfires, ...

A simple brain training task performed for just over a month could reduce dementia risk by as much as a quarter, a ...