Dr. Andrew Ahn, an internal medicine physician and expert in physiological signal analysis, dives deep into the fascinating world of Heart Rate Variability (HRV). He explains the various methods to measure HRV and shares how lifestyle factors like exercise, sleep, and stress influence it. The conversation explores the potential of wearable devices for HRV tracking and effective breathing techniques. Dr. Ahn also touches on the interplay between genetics and HRV, emphasizing personalized health optimization through data-driven insights.