Frequent Ejaculation Linked to Healthier Sperm and IVF Benefits

A University of Oxford-led analysis of about 55,000 men and 30 non-human species finds sperm quality declines the longer sperm are stored, so more frequent ejaculation is linked to healthier sperm with less DNA damage, challenging the WHO-recommended seven-day abstinence and aligning with evidence that ejaculating within 48 hours before IVF improves outcomes; the study also notes species differences in how males and females maintain sperm quality, with female storage organs often better at preserving viability, suggesting implications for clinical fertility practice and animal breeding.