The Testicular Temperature Paradox: Why Your Body Keeps Sperm Cool and What Happens When It Can't
Your body keeps sperm cool because spermatogenesis requires a temperature of about 34°C, roughly 3 to 4 degrees below core body temperature, and when scrotal temperature rises above that threshold repeatedly, sperm production suffers. The effect is temporary and reversible, but recovery takes months rather than days.Your testicles hang outside your body for a reason. It's not a design flaw—it's a temperature regulation system that's been conserved across 200 million years of mammalian evolution. Human sperm production requires a consistent temperature of about 34°C (93°F), roughly 3 to 4 degrees...
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