Some points are that it's going back up again and is largely caused by poor sleep health. Beyond that, I haven't looked this up but what is the actual relationship between lower sperm count and fewer children? I mean, you have maybe 2-3 children and millions of sperm, surely they are not linearly related.
Effects on mothers could matter a lot more, but also maybe they just don't want to do it.
Some points are that it's going back up again and is largely caused by poor sleep health. Beyond that, I haven't looked this up but what is the actual relationship between lower sperm count and fewer children? I mean, you have maybe 2-3 children and millions of sperm, surely they are not linearly related.
Effects on mothers could matter a lot more, but also maybe they just don't want to do it.