Jerry, Elaine, and George are eating at a restaurant, and George claims he is having a heart attack. Jerry and Elaine don't believe him, especially because his claims of being in a dire situation in the past were invalid. After some time, they realize he is actually suffering and call for help.

The effects of stress on heart function are shown while Homer talks to Mr. Burns. Homer dies but returns for the promise of some ham.

Neil and Shaun use augmented reality (AR) to practice a cardiac surgery on a patient's heart and find a scenario in which he would survive. They find a solution with an exceedingly low margin of error.

The human heart beats up to 3 billion times over an average lifespan. Learn about the anatomy of the heart and how this muscular organ provides life-giving oxygen throughout the body.

Tuck travels quickly through the bloodstream because Jack's heart rate has increased from being pursued by some villains. Tuck tries to stop his vehicle and avoid entering the heart through the tricuspid valve, which could be fatal to Jack.