Heart Rate Variability (HRV): Kristen Holmes and Emily Capodilupo explain what HRV is, what affects it, how to improve it, and what it means for recovery and human performance.

What is HRV? WHOOP VP of Performance Kristen Holmes and Director of Analytics Emily Capodilupo discuss everything there is to know about heart rate variability, including what it is (3:39), why it's such a valuable metric (7:06), how it's an indicator of fitness (10:11), what things affect it (12:59), why WHOOP tracks it during sleep (17:27), the role it plays in recovery (23:04), how it fluctuates regularly (26:42), why it's hard to say what a "normal" HRV is (30:07), the reason it's most be...