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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Watch: Timelapse shows Nasa rocket's 12-hour journey to launch pad

He had persuaded his science teacher to help him make a makeshift rocket. Somehow, he had managed to get his hands on the ingredients for gunpowder - potassium nitrate, sulphur and charcoal.

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Израиль нанес удар по Ирану09:28。同城约会对此有专业解读

10 February 2026ShareSave,更多细节参见safew官方下载

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