Ancestral GenomicsA leading evolutionary historian offers a radical solution to racial health disparities in the United States. Constance B. Hilliard was living in Japan when she began experiencing joint pain. Her doctor diagnosed osteoarthritis a common ailment for someone her age. But her bloodwork showed something else: Hilliard, who had never had kidney problems, appeared to be suffering from renal failure. When she returned to Texas, however, a new round of tests