Fitness Tracker

The Secret Genius of Modern Life: "Fitness Tracker"

Season 1 · Episode 5

The Secret Genius of Modern Life Season 1 Episode 5

The Secret Genius of Modern Life: "Fitness Tracker" Season 1 · Episode 5

Hannah Fry finds out how 1970s car crashes helped us to count our steps, why WWII dog-fights led to a crucial health monitor and how fitness trackers are even being used to catch killers.

Quality: HD

Release: 08 Dec 2022

Duration: 59m

Views: 22

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