The claim about a 20-year age difference in telomeres is extraordinary, and the lack of specific study details makes it hard to take seriously. If it were valid, we’d expect more rigorous follow-up, not just a vague reference to a Jerusalem study.

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I get the skepticism, but the idea that oxygen could influence cellular aging isn't completely out of the question—just not on the scale claimed.

The idea that oxygen could influence telomeres isn't out of the question, but the scale of the claim—20 years in 90 days—defies basic biology. It's not just about oxygen, it's about the *magnitude* of the effect.