This Huberman Lab Essentials episode focuses on building muscle size and strength, and improving recovery. Huberman explains the neurological mechanisms of muscle control, provides actionable resistance training protocols, and discusses recovery methods including testing for recovery (heart rate variability, grip strength, and carbon dioxide tolerance), the timing of ice baths, and the impact of NSAIDs. He also covers nutritional aspects, including the importance of salt, creatine, and leucine.