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.
| Title | Fitness Tracker |
|---|---|
| Genres | Documentary |
| Release Date | 2022-12-08 |
| Episode Runtime | 00 Hours 59 Minutes |
| Season Number | 1 |
| Episode Number | 5 |
| Production Companies | BBC Studios Science Unit |
