What’s often missed is that it’s not just your 'average' recovery that matters… it’s how 'consistent' that recovery is. 🧠 The science here is evolving quickly. A recent large-scale study analysing nearly 2 million nights of data found that variability in heart rate variability (HRV) during sleep, not just the absolute value, reflects how stable (or unstable) your behaviours are (Grosicki et al., 2026 - https://lnkd.in/dxm6aaqq ). Oh, and for fan boys like me, Andy Galpin