A single blood draw called Galleri, made by GRAIL, is designed to look for cancer signals from more than 50 cancer types before symptoms appear.

The American Cancer Society updated colorectal cancer screening guidelines, adding blood-based tests and reaffirming screening should begin at age 45.

Figuring out how advanced a patient’s Alzheimer’s disease has become could be made much easier with this method.

Quiz: Which blood tests matter most for aging adults? Most people know they should get blood work done. Fewer know what each test is actually looking for, or why some panels become more important after

People who skip colorectal cancer screening because colonoscopy or stool testing seems too burdensome now have a blood test option.

The simplicity of a blood test comes with a major caveat that will require nuanced discussions between doctors and patients. Shield, a blood-based colorectal cancer test that dete