Cynthia Thurlow

Reclaim Energy And Reverse Mitochondrial Loss | Dr. Elizabeth Yurth

In the recent interview, orthopedic surgeon and longevity expert Dr. Elizabeth Yurth explains that mitochondrial dysfunction is a central driver of the energy decline many women experience as they move from perimenopause into menopause. She argues that the post‑COVID world has amplified this problem, leaving a growing number of middle‑aged women with chronic fatigue, muscle loss, and joint pain that cannot be fixed by hormone replacement alone. Yurth notes that mitochondrial numbers begin to fall in the early thirties and by the late sixties only about 40 % of the original organelles remain, effectively operating on a 40 % battery. While exercise is the most potent stimulus for mitochondrial biogenesis, she cautions that without sufficient ATP the body will prioritize vital organs over muscle growth, making traditional strength training unrealistic for many patients. To bridge this gap, she recommends ketone supplementation, which bypasses oxidative phosphorylation, delivering clean energy without generating reactive oxygen species. She highlights practical tools such as the Kinetic ketone‑ester product, which provides a rapid spike of β‑hydroxybutyrate followed by a sustained release, allowing patients to regain enough energy to begin low‑intensity activity and stimulate their own mitochondrial repair. Yurth also stresses the importance of iron status: ferritin below 65 ng/mL compromises Complex V of the electron transport chain, directly limiting ATP synthesis. “If I’m running on a 40 % battery, I just can’t do as much,” she says, underscoring how low iron can cripple energy production. The discussion signals a shift for clinicians and functional‑medicine practitioners toward assessing and treating mitochondrial health as a primary target. By combining iron optimization, targeted ketone therapy, and graduated exercise, women can potentially reverse age‑related energy loss, preserve muscle mass, and reduce the risk of chronic diseases linked to mitochondrial dysfunction.