Study finds heat-activated switch in sperm is crucial for fertility

PHYSorg
May 3, 2025, 3:10 am215 ptsTrendingTop
In mammals—including us humans—sperm are surprisingly picky about temperature, thriving best in conditions a few degrees cooler than normal body temperature. But, given that the female reproductive tract is warmer than normal body temperature, how do these heat-sensitive swimmers manage to fertilize an egg…

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