Heart attack

From Tardis Wiki, the free Doctor Who reference

A Heart attack was a condition affecting certain individuals of near-human species.

The Seventh Doctor, who, being Gallifreyan, had a binary vascular system, once had a "one-sided" heart attack. (NA: So Vile a Sin)

Geraint Cooper suffered from a series of heart attacks. (TW: The New World, The Categories of Life)

Behind the scenes

Several Doctor Who contributors have suffered from heart attacks: