Free-floating DNA carrying cancerous mutations was detected in blood three years before any other signs of cancer appeared. If approved as a test, doctors might detect cancers sooner and treat them ...

A new study finds that fragments of tumor DNA in a patient's bloodstream could show that they are at high risk of a melanoma recurrence. When you purchase through links on our site, we may earn an ...

Cancer’s genetic fingerprints may lurk in people’s blood long before they find out about the disease. It’s possible to spot tumor DNA more than three years before a person is diagnosed with cancer, ...

Scientists in Sweden and Norway have uncovered a promising way to spot Parkinson’s disease years—possibly decades—before its most damaging symptoms appear. By detecting subtle biological signals in ...

This article is part of “Innovations In: Alzheimer's Disease” an editorially independent special report that was produced with financial support from Eisai. The first hints that Gregory Nelson might ...

A new blood test that detects a hallmark of Alzheimer's is poised to change the way doctors diagnose and treat the disease. The test, the first of its kind to be cleared by the Food and Drug ...

Millions of people donate blood each year, saving countless lives. After a donation, plasma and white blood cells are ...

For decades, Parkinson’s disease has been diagnosed only after unmistakable symptoms such as tremor, stiffness, and slowed ...