03/07/2026
In women, cortisol and progesterone share the same hormonal building blocks. During periods of chronic stress, your body prioritizes cortisol production. Over time, that can mean lower progesterone levels.
And progesterone is not just a reproductive hormone. It supports mood stability, sleep, stress resilience, and nervous system calm.
When cortisol stays high and progesterone drops, women may notice:
Increased anxiety
Worse PMS
Lighter or disrupted sleep
Cycle irregularities
Feeling wired but exhausted