Study pinpoints 45 years as the critical threshold for a significant downturn in male fertility

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. High levels of DNA fragmentation, defined as a breakdown of genetic material inside sperm cells, make it harder for sperm to fertilise an egg with other potential […]