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  2. Folliculogenesis - Wikipedia

    en.wikipedia.org/wiki/Folliculogenesis

    The percentages apply to all women whose ovarian reserve declines in line with our model (i.e. late and early menopause are associated with high and low peak NGF populations, respectively). We estimate that for 95% of women by the age of 30 years only 12% of their maximum pre-birth NGF population is present and by the age of 40 years only 3% ...

  3. Evolution of menopause - Wikipedia

    en.wikipedia.org/wiki/Evolution_of_menopause

    Another theory states that menopause is the byproduct of the evolutionary selection for follicular atresia, a factor that causes menopause. Menopause results from having too few ovarian follicles to produce enough estrogen to maintain the ovarian-pituitary-hypothalamic loop, which results in the cessation of menses and the beginning of menopause.

  4. Here's What Really Happens During Your Menstrual Cycle - AOL

    www.aol.com/heres-really-happens-during...

    After menarche (a person’s first period) and during perimenopause (the transitional time before menopause officially occurs), cycles can be anovulatory, meaning ovulation doesn’t occur ...

  5. Primary ovarian insufficiency - Wikipedia

    en.wikipedia.org/wiki/Primary_ovarian_insufficiency

    These result in a decrease of the ovaries' general supply of eggs that normally lasts until an average age of 51 for age of age-appropriate menopause. [22] Genetic causes such as Turner syndrome have initial ovarian development but then ovaries degenerate rapidly during prenatal life, often leading to gonadal dysgenesis with streak ovaries.

  6. What to know about menopause, according to a doctor - AOL

    www.aol.com/know-menopause-according-doctor...

    For most women, this natural, biological process occurs as a part of going through midlife when the ovaries stop producing certain reproductive hormones. In some situations, menopause is induced ...

  7. A Comprehensive List of Every Single Menopause Symptom ... - AOL

    www.aol.com/lifestyle/comprehensive-list-every...

    The Timing of the Age at Which Natural Menopause Occurs. Obstetrics and Gynecology Clinics of North America. 2012. Hot Flashes. StatPearls. Sleep Disorders and Menopause. Journal of Menopausal ...

  8. Ovary - Wikipedia

    en.wikipedia.org/wiki/Ovary

    Follicular cyst of ovary: Can occur after menopause, or during childbearing years [36] Theca lutein cyst: Normally occurs postpartum [37] Chocolate cyst: Presence of this type of cyst is an indicator of endometriosis [38] Ovarian germ cell tumors: Benign [39] Dysgerminoma: Typically occurs in young women between the ages of 10–30 years of age ...

  9. Age and female fertility - Wikipedia

    en.wikipedia.org/wiki/Age_and_female_fertility

    The percentages apply to all women whose ovarian reserve declines in line with a particular model where late and early menopause are associated with high and low peak NGF populations, respectively. It is estimated that for 95% of women by the age of 30 years only 12% of their maximum pre-birth NGF population is present and by the age of 40 ...