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 ...

Testing a person’s blood for a type of protein called phosphorylated tau, or p-tau, could be used to screen for Alzheimer’s disease with “high accuracy,” even before symptoms begin to show, a new ...

You can consume nothing but water for at least 8 hours before a fasting glucose test. You may also need to follow a low carb diet and avoid exercise for some time before. A fasting glucose test ...

The US Food and Drug Administration has approved a blood test to be used for colorectal cancer screening among average-risk adults 45 and older. The maker of the test, Palo Alto, California-based ...

A nuclear stress test shows how well blood travels through your heart at rest and exertion. Doctors often use it to check for coronary artery disease (CAD). Research suggests nuclear stress testing ...

Researchers have developed a first-of-its-kind test for autism that they say can find markers of risk in a single strand of hair, an innovation that might help clinicians identify it in young children ...