
Ovulation is beneficial because it’s how women make hormones.
Every month, as the ovaries get ready to release an egg, they pump out estrogen. Estrogen, in turn, stimulates serotonin, which is why women can be more outgoing and energetic in the few days leading up to ovulation.
Every month, after ovulation, one of the ovaries releases a huge amount of progesterone—the calming, soothing, anti-inflammatory hormone.
Our stress response system—the HPA axis—is calibrated for intermittent, severe threats such as lions. Not for the incessant, trivial threats of modern life, such as difficult phone calls. We don’t want our hypothalamus-pituitary-adrenal axis to charge up and release cortisol every time we drive in heavy traffic, but it will do so.
Eight hours of continuous sleep is a modern and artificial rest pattern. Some people are fortunate to have adapted to it fairly well, but for many of us, our bodies remember a different time.