It's true I am referring to one aspect of the body clock, viz, as it affects procreation. But considering that most people seeking a partner to make a home with have some idea of the possibility of a family, I don't think it is unreasonable to refer to it. And it is a fact that human egg quality drops rapidly in a woman's 30s, in a way that the quality of sperm in a man does not. Biology seems not to have been able to keep up with the twists and turns of N. American sexual politics.
I speak again from personal experience. My wife and I had great difficulty getting a child because my wife was 40 when we married. We had a long series of miscarriages, due, so the geneticist told us, to genetic defects in the embryos causing them to be spontaneously aborted. These defects arise, I learned, because when the egg develops it requires a separating of the pairs of chromosomes, so that only one of each pair is present. The chromosome pairs become "sticky" in older women, leading to chromosomal defects occurring during the process. It was a long and painful journey for us both and we only have the one child, as a result. We started too late.
Many people today assume they have all the time in the world when in fact they do not. And it is the woman's body clock that is the cause of the issue. It may seem old-fashioned to point this out, but it is a biological truth.
