But which numbers actually matter? Routine blood tests remain among the most important ways to track overall health, yet most people never learn what values physicians prioritize. Understanding key ...

A new study has mapped the distinct molecular "fingerprints" that 59 diseases leave in an individual's blood protein – which would enable blood tests to discern troubling signs from those that are ...

A prostate-specific antigen (PSA) test is a blood test that measures a protein released in the blood by prostate cells. Both normal and cancerous prostate cells release the protein. Most of the time, ...