Stroke always requires immediate attention. Learn more about whether you’re at risk.
A new study raises a troubling link between lots of sleep and a dangerous condition.
A new study suggests it might help the 3.4 million Americans diagnosed.
One emergency room doctor explains why concussions can be dangerous.
Worried? Check out these frequent indicators.
Do you know what to do?
About 2 million people in the U.S. are currently living with it.