Seventy years after Roger Bannister became the first man to run a sub-four-minute mile, researchers say a woman could soon do the same. A new study suggests that Faith Kipyegon—the fastest female miler in history—could break the four-minute barrier under ideal conditions, using strategic pacing and aerodynamic drafting.

Today, we look at the science, the strategy and the debate over one of the great frontiers in track and field. My guest is Olympian and now Dr. Shalaya Kipp.

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