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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Comparison between barycentric (triangular) dithering and Knoll’s algorithm using an 8-colour irregular palette. Left to right: barycentric, Knoll.

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