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 error-diffusion dithering and ordered dithering. Left to right: error-diffusion, ordered.

GP surgeries will contact families to arrange an appointment when the vaccinations are due.

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