This Huberman Lab Essentials episode focuses on optimizing estrogen and testosterone levels. The podcast explores the influence of various factors, including exercise (weight training before cardio), cold exposure, breathing (nasal breathing), and light exposure (bright light early, darkness at night) on hormone production. Specific examples include the impact of sleep apnea on hormone levels and the potential benefits of supplements like Tongkat Ali for increasing free testosterone. Listeners gain actionable strategies for improving hormone balance through lifestyle adjustments and a better understanding of the underlying biological mechanisms.