Before shooting one of their arrows, professional archers aim for the heart: therein lies one of the greatest keys to their success.

The slightest breath can end up knocking out their target, so archers must battle pressure and nerves to calm their heart rate and lock in their position.

For the first time, these changes in the rhythm of the heart can be seen live in an Olympic Games thanks to biometric controls.

It is one of the technologies that the organizers of Tokyo 2020 have adopted to bring all the details of the competition even closer to the public and improve their experience, a task now even more urgent given the lack of spectators in the stands due to the pandemic.