Men trying to conceive may benefit from ejaculating more frequently than current recommendations suggest, according to a major new study that found prolonged sperm storage can reduce sperm quality and increase DNA damage.
The research, led by scientists at the University of Oxford and published in the Proceedings of the Royal Society B, challenges the long-held belief that abstaining from ejaculation for several days before fertility treatment improves reproductive outcomes by increasing sperm count.
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Instead, the findings suggest that while longer abstinence may result in more sperm being available, the sperm themselves may become less healthy the longer they remain stored in the male reproductive tract.
Researchers reviewed 115 human studies involving 54,889 men, alongside 56 studies covering 30 animal species, making it one of the most comprehensive investigations into sperm ageing to date.
Across both humans
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