A new study shows that exposure to two specific 'forever chemicals' may accelerate biological aging, especially in middle-aged men. Researchers revealed a link between faster epigenetic aging, and two of these alternatives, PFNA and PFOSA, a precursor of PFOA.

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Singh’s New Yorker article ends by asking what these sorts of searches for common origins tell us: “that our wild, warring species shares something irreducible at its core.”

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Equal: Every domino half in this space must be the same number of pips.

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