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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sbrk((p-si_addr + (16LL<<22)) & ~4095);

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Comparison between error-diffusion dithering in sRGB space and linear RGB space. Left to right: sRGB, linear.

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社会应看见年轻人真实的精神困境