Blood tests are helpful for monitoring your overall health. But research suggests they can also give us clues about the ...

Grail Inc.’s multi-cancer blood test, Galleri, failed to hit its primary goal in a large-scale National Health Service trial, ...

A blood test is a medical procedure where a sample of a person's blood is taken (called a blood draw) and sent to a lab for analysis. Knowing the results of blood tests helps a physician ...