Add Yahoo as a preferred source to see more of our stories on Google. Grail's Galleri test screens for more than 50 different types of cancer from a single blood draw. (Getty Images) (Getty Images) If ...

A new light-based sensor can spot incredibly tiny amounts of cancer biomarkers in blood, raising the possibility of earlier and simpler cancer detection. The technology merges DNA nanotechnology, ...

Your doctor just mentioned ordering a comprehensive metabolic panel, and you’re wondering what that means and why you need it. Don’t worry — this isn’t some scary, complicated procedure. It’s actually ...

When it comes to cancer, waiting for symptoms may soon be old news. Telehealth company Hims & Hers began offering a blood test this week that screens for a wide range of cancers before warning signs ...

An MCV test measures the average size and volume of your red blood cells. Low MCV suggests microcytic anemia, with red blood cells smaller than normal. High MCV suggests macrocytic anemia, with red ...

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 better ...

A second blood test shows promise for the detection of colon cancer, according to a new study. The first, called Shield, was approved by the Food and Drug Administration in July for people 45 and ...

For decades, Parkinson’s disease has been diagnosed only after tremors, stiffness and slowed movement are already disrupting ...