BEIJING, May 10, 2026 /PRNewswire/ -- Forty-five years has been identified as the critical age threshold at which elevated sperm DNA fragmentation significantly reduces fertility potential in men.

Forty-five years has been identified as the critical age threshold at which elevated sperm DNA fragmentation significantly reduces fertility potential in men.

Legacy is the leading male fertility clinic in the United States, offering at-home semen analysis, sperm cryopreservation, ...

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Birds do it, and bees do it. Indeed, researchers estimate that over 99.9% of eukaryotes reproduce sexually. What, then, are the true costs and benefits of sex? Yet again, this simple example ...