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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Update, February 26, 2026, 1:16PM PT: This story was updated to specify that Meta’s internal estimates around ad revenue included scams and banned products.

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