How to Fast for Fat Loss, Hormones, and Better Sex | Dr. Mindy Pelz

In this powerful episode of The School of Greatness, host Lewis Howes sits down with Dr. Mindy Pelz, a leading expert in fasting and hormonal health, to explore how fasting can be a transformative tool for fat loss, hormone balance, and improved sexual health—especially for women. Dr. Pelz reveals that the body operates on two energy systems: one fueled by food and another activated during fasting, which taps into fat-burning ketosis, enhances mental clarity, and slows aging. She emphasizes that fasting isn’t one-size-fits-all, particularly for women, whose hormonal cycles require a tailored approach. Drawing from her book *Fast Like a Girl*, she introduces the concept of cycling fasting in alignment with the menstrual cycle—fasting more during the first 10 days (when estrogen is high) and reducing or stopping fasting during the premenstrual phase (when progesterone is dominant). She explains how stress, poor sleep, and nighttime eating disrupt hormonal balance, while connection, oxytocin, and rest are essential for women’s well-being. Dr. Pelz shares personal and clinical stories of women regaining their cycles, fertility, and energy after adopting hormone-aligned fasting, warning that aggressive daily fasting can backfire by disrupting hormones and causing anxiety, hair loss, and cycle suppression. The episode concludes with a call to trust the body, prioritize connection, and commit to lifelong learning as pillars of true greatness.