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Sperm from men over the age of 45 are linked to higher IVF miscarriages and lower birth rates - even when young donor eggs were used

Sperm from men over the age of 45 are linked to higher IVF miscarriages and lower birth rates - even when young donor eggs were used
Researchers found that a man's age plays a significant role in their reproductive success, challenging the notion that sperm age has little impact once fertilisation has occurred.

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