Body Battery: How wearable-derived autonomic recovery metrics relate to fatigue, sleep quality, and stress physiology
Body Battery is a consumer-facing biomonitoring concept that attempts to quantify the balance between physiologic stress load and recovery capacity using signals such as heart rate, heart-rate variability (HRV), and activity patterns. While the device algorithms are proprietary, the underlying medical rationale aligns with autonomic nervous system physiology: the sympathetic branch often increases with stress… Read More »