The topic of Health Metrics is closely related to the podcast episodes discussed, as they cover various aspects of metrics that can be used to assess and optimize health and performance.

For example, the episode 'Heart rate variability: how to measure, interpret, and utilize HRV for training and health optimization' delves into the use of heart rate variability (HRV) as a key health metric, discussing its scientific underpinnings, measurement methods, and practical applications in training and lifestyle optimization.

Similarly, the episode 'How to Use Music to Boost Motivation, Mood & Improve Learning' examines how music can impact physiological markers like heart rate and heart rate variability, highlighting the potential of using music as a tool for health and performance enhancement.