That makes it common? What load of crap.
A handful of teens die from cardiac arrest each year and that was the case long before the vaccines came into existance.
https://www.parentmap.com/article/silent-killer-sudden-cardiac-arrest-in-teens
JANUARY 30, 2014
At around 9:30 a.m., Matthew’s parents, Jerry and Melinda Truax, got a phone call from school officials, who told them that Matthew had collapsed. Later that morning, their youngest son was pronounced dead at the hospital of sudden cardiac arrest, caused by a heart condition they hadn’t known Matthew had. He was five days shy of his 17th birthday.
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Every three days in this country, a young athlete dies of sudden cardiac arrest (SCA), according to Dr. Jonathan Drezner of UW Medicine’s Department of Family Medicine, a sports medicine expert and team doctor for the University of Washington Huskies and the Seattle Seahawks.
It’s too tedious to explain the intentional distortions of your childlike reasoning right now. I’m just gonna go have some coffee instead.