72 (number)
From Tardis Wiki, the free Doctor Who reference
72 was a number.
According to the Twelfth Doctor's sonic sunglasses during the Monk invasion of 2017, Ilya Svyatoslavovich had a resting heart rate of 72BPM, (TV: The Pyramid at the End of the World) as did a member of the Pope's entourage in the Shadow World. (TV: Extremis)
