Defense Secretary Pete Hegseth announced Wednesday that he is rolling out a new screening program for “testosterone ...

A blood test for the biomarker phosphorylated tau 217 (p-tau217) recently received federal clearance, but questions have ...

Blood tests for tau, a key biomarker of Alzheimer’s disease, may predict dementia risk, a new study found. How best to use ...

After decades of using standardized testing to vet recruits, the Marine Corps could begin using a personality test to identify traits that lead to success.

Tragic rafting accident at Grand Canyon leads to a critical health emergency, highlighting the dangers of adventure sports in this iconic natural wonder.

A preliminary hearing in the case of the killing of conservative activist Charlie Kirk is done, for now. Prosecutors aim to ...

Warnings of a possible jet fuel crunch in Europe are prompting some Canadians to rethink or delay summer travel, putting a spotlight on what travel insurance will, and will not, cover if flights are ...