Athlete's Heart: Why Extreme Endurance Can Be Dangerous

Medlife Crisis · Explainer · 7 min · 2018 · YouTube title: Cyclists' hearts: can you be so fit that you die?

Why it's here

HN recommends it as a good, short explanation of athlete's heart and the risks of extreme fitness.

What it covers

Medlife Crisis examines why some elite endurance athletes die in their sleep, covering extremely slow heart rates and the effects of performance-enhancing drugs that thicken blood. It uses cyclist Marco Pantani as an example.