Nine years separated Marc-Vivien Foe's death from a heart attack on a pitch in Lyon to Fabrice Muamba's near-fatal collapse at Tottenham, and another nine passed before Christian Eriksen was brought back to life at Euro 2020 this summer.
Three of the most harrowing in-game episodes that football has seen were spread over more than 18 years, yet it feels that barely a week goes by at the moment without news of another cardiac-related incident in the game.
The sad confirmation on Wednesday that Sergio Aguero has been forced to retire at the age of 33 due to an arrhythmia followed news that Victor Lindelof has been wearing a heart monitor this week after leaving Manchester United's game at Norwich on Sunday clutching his chest.