It's truly hormonal changes as women are getting "Older" for years no one paid attention to Women's Health issues
After Child bearing years women really did not have many more years left of "Good Health" and for a long time the Medical Industry didn't care, Men by droves left there wives for younger women or just left and there wives usually became nuerotic and drove there Adult Kids Crazy...
Today it's different women look great and are healthy in there 40's and people are living well into there 90's, still the case is that your hormones DO change, it is ovulation that makes a woman want or crave sex because her body normally is ready to conceive same in the Animal Kingdom when you loose your ability to ovulate you loose Progesterone, Testosterone and you have out of control Estrogen.
The new thing is BIO-IDENTICAL HORMONES which is the natural way to put the hormones you loose back in your body and it works! WOMEN HAVE IT TOUGH, you go from PMS, to Peri-menopause to Menopuase most men could not survive it...I am very much into Women's Health Issues and there is something to learn about the female body daily...
You need to review your human physiology. Your facts are incorrect.
Women do not stop making hormones after menopause; they simply produce lesser amounts. There is a slight increase in a woman's sexual interest around ovulation but it is insignificant in terms of reproduction. Women do not experince any type of estrous cycle. Most women do not experience PMS. Peri-menopause is a lable, not a diagnosis. Playing around with hormones, natural or synthetic, is tricky business and should be approached very cautiously.
If you like women's health issues, you need to read more.