Professor at Duke University School of Medicine Virginia Byers Kraus discusses how a simple test could predict longer life

A new study from Duke Health suggests a simple blood test may help predict who is more likely to live longer. Researchers found that small RNA molecules known as piRNAs can accurately indicate whether older adults are likely to survive at least two more years. Virginia Byers Kraus, a professor in the Duke University School of Medicine, joined Jeff Hamlin to discuss the study.