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Fitness Tracker
Episode 5 of 6
Hannah Fry finds out how 1970s car crashes helped us to count our steps, why WWII dogfights led to a crucial health monitor and how fitness trackers are even being used to catch killers.
With around a third of the population now owning fitness trackers, Britain has become a nation obsessed with tracking its every move.
Hannah Fry finds out how 1970s car crashes helped us to count our steps, why high-altitude WWII dogfights led to a crucial health monitor and how fitness trackers are even being used to catch killers.
Last on
Fri 10 May 2024
16:00
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