Free-floating DNA carrying cancerous mutations was detected in blood three years before any other signs of cancer appeared.

If you're at risk for diabetes or have noticed your glucose readings creeping up, your doctor may check your A1C as part of your routine blood work. An A1C test measures your average blood sugar ...

A modified insulin that can prevent sudden drops in blood sugar has been demonstrated in laboratory experiments and animal models, reports a paper in Nature. This could provide a more flexible way ...