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Revolutionary Discovery: Sperm's Temperature-Sensitive Protein Unveiled

5/3/2025

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Story summary
  • A groundbreaking discovery at Washington University School of Medicine reveals that sperm harbor a temperature-sensitive protein, CatSper, which activates at 33.5°C (92.3°F). This finding sheds light on the importance of cooler testicles for male fertility and how sperm adjust to warmer environments, paving the way for advancements in male contraception and infertility therapies.