Why Your Body Runs on a 24-Hour Clock—and Why It Matters to Women’s Health

Women's Healthspan Voices with Dr. Pat McShane · Mar 12, 2026 · 14m

In this episode, I explore the science of circadian rhythm and why it plays such a vital role in healthspan. I discuss how our internal clocks regulate hormones, metabolism, sleep, and energy—and how modern lifestyles can disrupt these rhythms. I also share simple strategies to support better circadian alignment through light exposure, consistent sleep, exercise, and meal timing.

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Dr. McShane is board-certified in obstetrics and gynecology as well as reproductive endocrinology and infertility. She earned her medical degree from Tufts University School of Medicine. She then pursued…