The Brave New World of Athletes’ Heart Problems

Argentina's Sergio Aguero announced his retirement Dec. 15 after suffering a heart attack six weeks earlier during a game. In two decades as a professional, Aguero never previously experienced heart problems that kept him off the field.

Aguero is not alone. This year, more than 300 athletes around the world -- some as young as 12 -- collapsed unexpectedly, mostly due to heart problems. Nearly 200 of them died. What did they have in common? The vast majority, if not all of them, received the experimental COVID-19 vaccines based on mRNA spike proteins. That relationship appears not to be coincidental, despite attempts to dismiss the possibility.

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