An Alzheimer's biomarker blood test during middle age may help doctors detect very early signs of cognitive decline to help ...

A blood sample small enough to come from a finger prick, paired with a set of online thinking tests, may offer a new way to sort who faces the greatest risk of dementia. This approach could do so ...

Testing a person’s blood for a type of protein called phosphorylated tau, or p-tau, could be used to screen for Alzheimer’s disease with “high accuracy,” even before symptoms begin to show, a new ...

Arteries carry oxygenated blood away from your heart. They have thick walls and a muscular layer that keeps your blood moving. Arteries can be as wide as a nickel (about two centimeters). They are the ...