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.

· · 来源：bbs-gz资讯

Following its discovery, it was carefully lifted out of the earth in a soil block and scanned to work out where the items were positioned, before conservation began.

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extract2, when we know the final size of the slice, we do one heap

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