A new medical test could be the key to detecting breast cancer early.

FOX's Colleen Cappon reports in today's edition of Housecall For Health:

A blood test to determine breast cancer risk may be available in as little as five years. Researchers at Imperial College in London have identified a genetic switch that doubles the risk of developing the disease and is carried by one in five women. Results of the test are especially clear in blood samples from women under sixty. The breakthrough means that signs of breast cancer could be detected decades in advance.

Housecall for Health. I'm Colleen Cappon, FOX News Radio.