The role of extremely high stress in female fertility is most accurately described as contributing to what condition?

• A. Increased fertility
• B. Anovulation and ovulatory dysfunction
• C. Improved ovulatory regularity
• D. No effect on fertility

Answer: (B)

Extreme stress signals the body to conserve energy, which can blunt the brain’s control of reproduction. The hypothalamus reduces GnRH pulse frequency and amplitude, leading to lower secretion of FSH and LH from the pituitary. With insufficient FSH and LH, the ovaries may not ovulate or may do so irregularly, producing anovulatory cycles or ovulatory dysfunction. This pattern is commonly seen in functional hypothalamic states, such as during intense stress, significant weight loss, or excessive exercise, and is further influenced by stress hormones like cortisol. Because of this, extreme stress tends to impair fertility by suppressing ovulation rather than increasing fertility, improving regularity, or having no effect.