Andrew Huberman and Dr. Konstantina Stankovic discuss how the auditory system works from the ear to the brain, emphasizing its extraordinary sensitivity and importance for communication, emotion, and cognition. They cover causes and types of hearing loss, tinnitus, noise exposure thresholds, and practical strategies to protect hearing, including sound level limits, earplugs, and possibly magnesium intake. The conversation also explores links between hearing loss and dementia, cochlear implants, genetic and environmental contributors to hearing loss, inner ear regeneration research, and broader issues such as environmental noise pollution and sensory-driven brain plasticity.