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The Super-Soldier Serum Explained: Is Captain America Immune to Aging?

According to a study on “aging well, superhero-style” published in *The BMJ*, even fictional heroes demonstrate traits associated with healthier aging. This naturally leads to a popular fan question: **Is Captain America immune to aging?** It's a query that delves into the fascinating intersection of comic book fiction and real-world science, with a surprisingly nuanced answer.