Obstetrics & gynaecology

Paternal age over 51 years reduces success rate in IVF and ICSI

While female fertility comes to an irrevocable end with the menopause (at a consistently average age of 51 years), men are not constrained by similar biological senescence. Studies have shown that sperm counts may decline ...

Psychology & Psychiatry

Fathers of American newborns keep getting older

While data on the moms of newborn American children has been abundant, equivalent data on dads hasn't—a gap that Stanford scientists have now filled.

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