Cancer could be detected three years before diagnosis with experimental blood test

Cancer could be detected three years before diagnosis with experimental blood test

Test could detect tumors earlier when they are more curable, researchers say

Genetic material shed by tumors can be detected in the bloodstream three years prior to a cancer diagnosis, researchers found. (iStock)

"Three years earlier provides time for intervention," noted the lead study author (not pictured). (iStock)

The researchers analyzed plasma samples to assess risk factors for heart attack, stroke, heart failure and other cardiovascular diseases. (iStock)