Brad Reisfeld is a professor of chemical and biological engineering, biomedical engineering, and public health at Colorado State University. Your blood serves numerous roles to maintain your health.

Human blood already comes in a bewildering variety of types, but researchers have now identified a new one so rare that only ...

Scientists in Thailand have identified a remarkably rare hybrid blood type, B(A), found in only three individuals out of hundreds of thousands tested. This discovery challenges traditional blood ...

Blood tests look for markers in the blood that may indicate non-Hodgkin lymphoma. Blood tests alone cannot diagnose lymphoma, but they can help with diagnosis. A doctor may order blood tests to look ...

A new type of blood test could help detect multiple cancers early. A team of researchers in California studied a new multi-cancer early detection (MCED) test called Galleri, which can reportedly ...

A new generation of blood tests is poised to change the way doctors determine whether patients with memory loss also have Alzheimer's disease. The tests detect substances in the blood that indicate ...

Blood tests can be an important part of a pancreatic cancer diagnosis. With this type of cancer, a timely diagnosis is vital, however, pancreatic cancer is often difficult to detect early. Certain ...

Want to B-positive about your health? Johns Hopkins researchers have developed a cutting-edge blood test that can detect signs of cancer three years before any symptoms surface. The breakthrough could ...

Blood tests cannot detect throat cancer. However, they can help indicate a person’s overall health. Doctors may use them to determine whether a person is a suitable candidate for certain types of ...

Alex Hutchinson is a National Magazine Award-winning journalist and Outside’s Sweat Science columnist, covering the latest research on endurance and outdoor sports. As a runner and a journalist, I ...