What Your Labs Say About Hormones, Inflammation, and Toxic Load with Kayla Barnes-Lentz

Burnout isn’t just about feeling tired, it’s a biological signal your body has been trying to send. In this solo episode of Treated, Dr. Sara unpacks the 7 key biomarkers every woman should track to understand and prevent burnout. From heart rate variability and cortisol patterns to thyroid function, progesterone, and sleep quality, she reveals why the usual metrics– steps, calories, and bathroom scales– miss the bigger picture of what’s really happening inside your body.

Women’s health expert Cynthia Thurlow returns to Treated to unpack one of the most misunderstood wellness trends: intermittent fasting. Together, Dr. Sara and Cynthia explore why fasting can stop working—or even backfire—for women over 35. From blood sugar crashes and burnout to the loss of lean muscle, they reveal how stress, hormones, and timing shape a woman’s fasting success. Cynthia shares how her own approach evolved through perimenopause, why she swapped strict fasting for “digestive rest,” and how she rebuilt strength and energy by eating more protein, lifting heavy, and embracing carbohydrates.

Today, Dr. Sara sits down with Biet Simkin for an unflinching and soulful conversation about trauma, transformation, and the pursuit of true sovereignty. Known for blending spirituality with art, music, and radical honesty, Biet opens up about losing her mother at six, the compounding grief that shaped her early life, and how she transmuted that pain into a spiritual practice. Together, they explore what it means to live not in spite of what breaks us, but because of it—and how awakening can coexist with mess, humor, and humanity.

Today Dr. Sara explores one of the most misunderstood symptoms in women’s health: brain fog. She unpacks why the mental haze so many women experience isn’t “just stress” or “getting older,” but often a biological signal of deeper dysfunction—spanning hormones, mitochondria, inflammation, and metabolism. From postpartum to perimenopause to menopause, Dr. Sara traces how shifting estrogen, nutrient depletion, and chronic stress can dim the brain’s energy output—and how to reverse it. She offers a step-by-step roadmap to restore mental clarity, reboot energy, and reclaim focus at every stage of womanhood.

Jimmy St. Louis is a former NFL tight end for the Tennessee Titans and USA Rower – but he joins Treated today to discuss his life mission: to help people live better through healthcare innovation. He’s the CEO of Agentis Longevity, a clinically focused provider of comprehensive longevity care. Jimmy shares how his discipline as a professional athlete shaped his values and how those values guide his work in building accessible, patient-centered longevity care. From his years at the Laser Spine Institute to founding Regenerative Medicine Solutions, Jimmy has been driven by one mission: to solve unmet needs in healthcare and help people live longer, healthier, and happier lives. Together, Dr. Sara and Jimmy dive into the power of daily routines, the science of longevity, and the future of healthcare innovation. They discuss practical strategies for optimizing performance – from tracking biomarkers to rethinking recovery, and how Jimmy is working to democratize longevity services.