I think we all know that the best, fastest sperm wins the race to become the child whatever whatever. My question is does it actually make a difference for the kid. Would there be any difference if it was just a random one, not the first one? I’m wondering if the sperm cell being first has any correlation to the human being more functional or anything.
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Read up on the Shettles method. TL;DR- there are many factors that influence which sperm fertilizes the egg and by manipulating these factors, you can increase the likelihood of having a boy or a girl.
I don’t think there is a universal definition of “best sperm”. Depending on the environmental factors (e.g., when the egg was released, acidity of the vagina), the fastest sperm COULD get to the egg first (though according to the other comments, that’s no guarantee that it’ll be the one to fertilize the egg) or the slower but more resilient sperm could get to the egg first.
Assuming they’re all genetically fit, it matters which sperm gets there because the sperm determines the gender of the child. If they’re not all genetically fit, it matters because the embryo may not be viable if fertilized with a bad (I don’t know the proper terminology) sperm. There are probably a lot of other ways in which it matters that I don’t know enough to talk about.
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