Blood pressure
From Tardis Wiki, the free Doctor Who reference
According to the Twelfth Doctor, a binary vascular system led to extremely high blood pressure in comparison to single-hearted species like humans. (TV: Smile) The Thirteenth Doctor was noted to have high blood pressure, as well. (TV: Kerblam!)
For humans, a blood pressure of 160/90 was "not good". In one case, a patient with 160/90 went into cardiac arrest. (AUDIO: Visiting Hours)
In River Song's World, Malohkeh remarked that he could tell from Winston Churchill's blood pressure that Cleopatra was an "excellent dancer" from his late night in Gaul. (TV: The Wedding of River Song)
