Per-Muscle Recovery Half-Lives: Why Legs ≠ Shoulders ≠ Chest
Your chest isn't recovered in the same window as your quads. Here's how per-muscle recovery half-lives change training frequency and session design.
What Is a Composite Health Score and Why Does It Matter?
Single metrics lie by omission. A composite score synthesizes HRV, sleep, training load, and recovery into one number — but only if you can see how it's built.
How Wearables Measure Stress and Strain — and What the Numbers Mean
Garmin Body Battery, WHOOP Strain, Oura Stress, WHOOP Recovery — these scores sound like they measure the same thing. They don't. Here's what each one actually calculates, why they contradict each other, and how to read them together.
What Is HRV and How Do Wearables Measure It?
RMSSD, SDNN, LnRMSSD — your wearable picks one and doesn't tell you which. Here's what HRV actually measures, how Oura, Garmin, WHOOP, and Polar each capture it differently, and why your baseline matters more than any single number.
Your Body Already Knows When to Focus
Your wearable data contains a hidden signal: the ultradian rhythm. We're building a system that reads it — predicting your best focus windows from sleep data, then refining in real-time with a heart rate monitor.
Your Wearable Says Rest — But Should You Actually Train?
Readiness scores tell you how recovered you are. They don't tell you whether skipping today's session is smart load management or the start of detraining. We added a sports science metric to close that gap.
Garmin vs Oura for Recovery, Readiness, and Sleep
Garmin and Oura solve different problems. Here's how they compare for sleep tracking, training readiness, workouts, HRV, and whether you should use one or both.
Oura vs WHOOP for Sleep, Recovery, and Training
Trying to choose between Oura and WHOOP? Here's the practical difference in sleep tracking, HRV, recovery, workouts, battery life, and who each device is actually best for.