In this Huberman Lab Essentials episode, my guest is Dr. Kyle Gillett, MD, a dual board-certified physician in family medicine and obesity medicine and an expert in optimizing hormone levels to improve overall health. We explain how to improve hormone levels across the lifespan in both men and women using behavioral, nutritional and exercise-based tools. We also discuss common clinical topics, including hormone testing, PCOS, hair loss, testosterone replacement therapy (TRT) and peptides,