The hidden cost of sperm storage: Ejaculates found to deteriorate across the animal kingdom

Current World Health Organization (WHO) guidelines typically recommend two to seven days of abstinence before taking semen samples or assisted reproduction. However, a new study led by Oxford University researchers suggests that regular ejaculation—whether through sexual activity or masturbation—results in higher quality sperm, with less DNA damage. The paper is published in the journal Proceedings of the Royal Society B: Biological Sciences.