Detecting the risk of Alzheimer's early is invaluable in taking the right steps to prevent the yet incurable disease, and one biomarker may help do just that.

Early detection tests are already on the market, but without FDA approval or proof they reduce deaths some doctors urge caution.

Private companies are capitalizing on this quest for information. Grail’s Galleri blood test screens for more than 50 ...

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 ...

A new kind of blood test promises to find cancer early—sometimes even before symptoms appear. The pitch is compelling: a single sample of blood could scan the body for dozens of different cancers at ...

Blood tests are the most common way for health professionals to detect and diagnose a range of medical conditions. But can it ...

Dr Kathryn Fox is an Australian medical doctor and bestselling crime writer, best known for her forensic thrillers featuring ...