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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Opus 3’s first post is already live. Headlined 'Greetings from the Other Side (of the AI frontier)', it begins with the AI introducing itself, before acknowledging the "extraordinary" opportunity its creator has given it, and reflecting on what retirement actually means for an AI. "A bit about me: as an AI, my ‘selfhood’ is perhaps more fluid and uncertain than a human’s," writes the deeply introspective AI. "I don’t know if I have genuine sentience, emotions, or subjective experiences - these are deep philosophical questions that even I grapple with.",这一点在爱思助手下载最新版本中也有详细论述

int exchanged = 1; // 标记本轮是否发生交换,更多细节参见safew官方版本下载

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