Topic Guide
What Is Reproductive endocrinology?
Reproductive endocrinology is a subject covered in depth across 1 podcast episode in our database. Below you'll find key concepts, expert insights, and the top episodes to listen to — all distilled from hours of conversation by leading experts.
Key Concepts in Reproductive endocrinology
Egg quality vs. ovarian reserve
Egg quality refers to the genetic normality and competency of an egg (e.g., mitochondrial health, correct chromosome positioning). It is not directly testable but is approximated by age and metabolic health. Ovarian reserve refers to the quantity or number of eggs remaining in the ovaries, which can be approximated by a blood test called AMH (anti-Müllerian hormone) [45:51, 46:53].
Hormone augmentation
This concept differentiates from traditional 'hormone replacement therapy' (HRT), suggesting that individuals can proactively optimize their hormone levels within the normal physiological range, rather than only initiating treatment when levels fall below a strict diagnostic cutoff. It allows for treating symptoms and supporting long-term health even if hormone levels are technically 'low-normal' [09:12, 10:13].
Luteal phase defect
An early stage of an ovulation disorder where the luteal phase (the latter half of the menstrual cycle after ovulation) is shortened (less than 11 days) due to a miscommunication between the brain and ovary. It can occur even in women with seemingly regular cycles and warrants further investigation into underlying causes like prolactin, thyroid issues, AMH levels, or PCOS [53:58].
Perimenopause
The transitional period, typically lasting 5 to 10 years, leading up to menopause. During this time, women experience changes in hormonal function and menstrual cycles due to declining egg count, but they can still ovulate and potentially get pregnant. It's a phase where hormone therapy can be beneficial even before the full cessation of periods [06:07, 16:21].
What Experts Say About Reproductive endocrinology
- 1.An AMH test, costing around $79, is strongly recommended for all women who want children one day, as it provides crucial information about ovarian reserve (egg count) and can reveal underlying health issues, despite medical organizations often advising against it for those without diagnosed infertility [51:56, 56:02].
- 2.Fertility is a vital health marker, with infertility indicating higher rates of metabolic syndrome, cancer, heart attack, stroke, and earlier mortality for most individuals [04:05].
- 3.Women should consider hormone augmentation therapy during perimenopause and menopause, rather than strictly waiting for ovarian failure, to optimize hormone levels for symptom relief and long-term health benefits like cardioprotection and bone health [07:08, 09:12, 10:13].
- 4.Egg quality (genetic normality and competency) differs from ovarian reserve (egg count); ovarian reserve can be approximated by an AMH test, while egg quality is influenced by age and metabolic health [45:51, 46:53].
- 5.Chronic inflammation, fueled by lifestyle factors such as diet, stress, and exposure to toxins like microplastics, can negatively impact ovarian lifespan and egg quality [18:24, 21:28].
- 6.Egg freezing does not deplete a woman's ovarian reserve; it merely captures eggs that would otherwise be lost in a natural cycle, preserving them for future use without hastening menopause [61:10].