Their makers claim they can detect dozens of cancer types — but some scientists say they could be missing many cancers or ...

No matter your age, regular blood work can be an important tool for understanding and optimizing your overall health. Finding certain markers in your blood allows healthcare professionals to gain ...

Is the Galleri multi-cancer blood test worth it? A doctor explains real-world performance data and explains why no major ...

A magnesium blood test measures the amount of magnesium, an important mineral, in your blood. Your body needs magnesium from ...

A simple blood test can be a novel way to figure out whether cancer treatment will work. Doctors at Royal Melbourne Institute of Technology developed a blood test to screen cancer patients and ...

What Is an MCV Blood Test? MCV stands for mean corpuscular volume. An MCV blood test measures the average size of red blood cells, which have the critical job of carrying oxygen to your organs. If ...

Haupt is a health and wellness editor at TIME. A snapshot of my Function Health test results Haupt is a health and wellness editor at TIME. The last time I went to the doctor, I lived in a different ...

Blood draws for several kinds of diagnostic tests require you to fast for several hours. Eating or drinking anything besides water can skew the results, leading to you needing to be retested. You may ...

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 ...

Colorectal cancer is one of the cancers where, if found early, it has a 91% chance of survival for the patient. If you find ...

Because the risk of many conditions increases with age, doctors generally recommend more frequent lab testing as you get older. This is because many health risks increase with age, and early detection ...