从科学研究的角度看，所谓的“环境内分泌干扰物”，指的是一些可能干扰体内激素信号的化学物质，例如某些塑料添加剂（如双酚A，BPA）、工业污染物（邻苯二甲酸酯）或被称为“永久化学品”的物质（全氟和多氟烷基物质）。这些物质广泛存在于食品包装、日用品、工业材料或环境中，在实验研究和部分人群研究中显示出干扰激素信号的潜在能力，但不同研究之间的结果并不一致，且暴露水平、暴露时机与青春期指标之间的关系仍难以精确界定。
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