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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Several of the videos feature small labels saying they are "AI-generated" or contain "synthetic media", in line with Tiktok, Instagram and X's policies on AI media, but some people who had left comments told us they had been genuinely convinced by the posts.

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