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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Animations — FadeIn/Out, Create, Transform, Write, GrowFromCenter, AnimationGroup, LaggedStart

据「21 世纪经济报道」，刘强东在现场指出，自己的精力仍将主要放在京东集团。但同时他也针对 50 亿的总投资额做出回应，「这样才能够去跟欧美全球顶级的游艇制造公司竞争。」

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