Brain aneurysm is a disease in which blood vessels swell like balloons as some of the walls of blood vessels in the brain ...

Susan Aaron was an active 74-year-old retiree with Alzheimer’s who was told she might experience extreme fatigue and terrible headaches if she tried a new drug from Eisai Co. that promised to slow the ...

Thunderclap headache is often referred to as the worst headache of your life. Learn about diagnosis, symptoms, and what to do ...