《世界男子健康杂志》2021年的研究发现,自1992年以来,阴茎的平均尺寸增加了25%,精子质量下降了60%。 2021 study in World Journal of Men's Health finds a 25% increase in average penis size and a 60% drop in sperm quality since 1992.

《世界男子健康杂志》2021年的研究显示,自1992年以来,阴茎的平均尺寸增加了25%(从12.19厘米增加到15.34厘米),这与定居生活方式和干扰激素的物质有关。 2021 study in World Journal of Men's Health reveals a 25% increase in average penis size (from 12.19 cm to 15.34 cm) since 1992, linked to sedentary lifestyles and hormone-disrupting substances. 由于生殖器官缺陷、肿瘤以及精子数和睾丸素水平下降,精子质量下降了60%,而这一增长恰好与此相吻合。 This increase coincides with a 60% drop in sperm quality due to genital defects, tumors, and decreased sperm count and testosterone levels. 研究人员强调,需要进一步调查,以了解这些变化的影响。 Researchers emphasize the need for further investigation to understand the implications of these changes.

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