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：tutorial资讯

Well, yes, because that was the state of technology in the 1930s. But it would

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感悟春节的非遗意义（博古知今）