Julie Bowen, best known for playing Claire Dunphy, says her sister was the one who discovered an irregularity in her heartbeat.

Julie Bowen may be known for her quick wit and comedic timing, but behind the scenes, she’s been living with a serious heart condition that required a pacemaker — a diagnosis that once left her thinking her life was over.

In a recent interview, "Modern Family" star Julie Bowen got candid on living with a heart disorder, as well as her upcoming role in "Happy Gilmore 2."