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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A reader calls for museum curators to look for historic scientific apparatus, and a landmark treaty aims to protect the Mediterranean from pollution, in our weekly dip into Nature’s archive.

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