Speaker
Dr. Natalie Crawford
3 bits across the podcasts they've appeared on
58% of runners: luteal phase defect
58% of female runners have a luteal phase defect, meaning the second half of their menstrual cycle is compromised, likely due to relative energy deficiency.
Hypothalamic amenorrhea: brain shuts off reproduction
Chronic overexercising and underfueling can cause hypothalamic amenorrhea — the brain stops signaling FSH and LH, halting ovulation and estrogen production entirely.
