See for example: http://www.nature.com/news/reproductive-biology-fertile-mind...
> in 2009, Ji Wu at Shanghai Jiao Tong University in China and her colleagues reported that they had isolated from mice what she called “female germline stem cells” — not from bone marrow, but from ovarian tissue. When her team transplanted the cells into chemotherapy-treated female mice, they developed into mature oocytes, then fertilizable eggs and, the clincher, healthy pups.
>[Tilly] has since published a parade of headline-grabbing papers, culminating this year in a report2 that he had isolated the elusive stem cells from human ovaries and coaxed them to develop into bona fide oocytes. But his work has been dogged by doubt.
It's still really messy and I haven't heard anything new in 3 years, but humans may have the capability in place to create unlimited oocytes like sperm, it's just hard to tell why we don't (the OP's story is one story - there are unlimited possible stories, including simply random loss).
> It's still really messy and I haven't heard anything new in 3 years
There is some very good-but-old research into reproductive physiology. There is quite a gap between modern "medical science" and physiology. The core problem is that it is much more profitable for Wall Street to suppress women's difficult menstrual cycles with drugs, than to implement what was figured out long ago.
> but humans may have the capability in place to create unlimited oocytes like sperm, it's just hard to tell why we don't
Women's reproductive organs get worn out by Estrogen, which should be known as "The Cancer Hormone" or "The Heart Attack Hormone". Fundamentally, estrogen tells tissues to "swell and divide". Estrogen is balanced by Progesterone, which is Nature's anti-estrogen.
Before she met me, my girlfriend self-medicated her depression with the street pharmacy, and shut down her menstrual cycle. Some very stupid endocrinologists told her she "went through menopause", at around 28 years old. Now she thinks she can't get pregnant, because MENOPAUSE. But if her pituitary starts working right, and a proper diet and the right supplements refresh her uterus, she could release an egg at any time. She's not going to get knocked up, because I've just verified that my reversible sperm-elimination strategy has been successful, but I've met plenty of women with an infant on their hip whose doctors told them they were infertile.
what? and how did you verify?
I verified with a microscope - the amscope 150 (iirc) was not quite $100 with some slides. I should have bought the microscope first.
It also assumes that these constructs are the more favorable outcome in increasing mankind's "fitness", than a mutation that gives women more than 400 eggs.
It explains this away by saying evolution perfectly timed menstruation to allow for raising the last child to adulthood coinciding with your average-est old age of 70. It must be further hypothesized and explained how natural selection could have codified this time traveling foresight into the genome, before even beginning to leap to that conclusion, while simultaneously acknowledging other mammals don't have this "feature", while simultaneously acknowledging that kidneys don't just give out at age 45 in a kidney menopause process, or lungs, or other organs. The article inadvertently makes the greatest case that the reproductive system breaking itself is a flaw, and tries to extrapolate why that would it is a feature, and why it is the best possible feature, when a best possible feature according to their time traveling genome theory, would be an adaptive amount of eggs in each woman based on their genetic fitness, instead of 400.