Out of Africa

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What can modern medicine learn from the people with the most diverse DNA on the planet? Only by working with the San desert communities in southern Africa can geneticists trace the deepest roots of the human family tree. In a world first, Professor Vanessa Hayes is searching for the origins of modern society- the DNA evidence of when hunter-gatherers became farmers. Mark Horstman joins her on a unique road trip through exotic Namibia, in a quest with far-reaching implications for everyone. As Vanessa reveals the bedrock of human genetic diversity, her work exposes some startling truths about racial inequality in modern medicine.