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 ...

A new blood test may reveal Crohn’s disease years before symptoms begin. The test detects an unusual immune response to gut ...

Around four years ago, now 77-year-old John Gormly went for what was supposed to be a routine blood test. But the results were life-changing. The test suggested Gormly had colon cancer, which a ...

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