This podcast features Dr. Mark Hyman interviewing Dr. Matthew Walker, a sleep expert, about the critical role of sleep in overall health. The conversation progresses from the societal impact of sleep deprivation (e.g., reduced prosocial behavior) down to the cellular level, highlighting the effect on gene expression and organ systems. Dr. Walker emphasizes the importance of prioritizing sleep quantity and quality, regularity of sleep schedules, and aligning sleep timing with one's chronotype. He suggests practical steps like reducing light exposure before bed, establishing a wind-down routine, and considering magnesium supplementation if deficient. Listeners gain actionable insights into improving sleep quality and understanding its profound impact on various aspects of health.