HRV
Heart rate variability, resting heart rate and what those numbers say about regulation.
3 posts
Understand what your numbers say
Practical writing on HRV, sleep, recovery and training. Written for people who want to make sense of their Apple Watch data instead of only collecting it.
Training by readiness: when load actually makes sense
How to adapt a training plan to your recovery values without skipping a session every time a number looks bad, and when to ignore the number entirely.
Read the postEveryday
Night shifts: what recovery data says about your rhythm
Why HRV and resting heart rate look different on rotating shifts, where the measurement hits its limits, and how to read your trend anyway.
Everyday
Shift work and sleep: routines that survive a rotating schedule
Why shift work breaks the rhythm, which lever actually works, and which routines hold up when the roster keeps changing.
Everyday
What an AI health coach can do, and where it stops
Where an AI coach with access to your data genuinely helps, what it necessarily fails at, and how to get useful answers out of it.
Sleep
Sleep quality beats sleep duration
Why eight hours is not a target, what sleep quality actually means, and which lever gives you the most in daily life.
Sleep
How much deep sleep is normal? Context instead of targets
What share of deep sleep is typical, why wearables can only estimate it, and what reliably reduces it.
HRV
Resting heart rate, HRV and sleep: what actually connects
Why resting heart rate and HRV do not measure the same thing, what it means when they diverge, and which combinations are worth acting on.
Training
Readiness instead of guesswork: how a readiness score is built
What goes into a daily readiness value, why the weighting is harder than it looks, and the situations where the score is simply wrong.
HRV
Why HRV changes from night to night, and when that matters
How much your nightly HRV is expected to move, what drives the swings, and the point where a deviation actually means something.
HRV
Understanding HRV: what heart rate variability says about recovery
What heart rate variability actually measures, why there is no normal value, and how to read your own trend without overreacting to it.
What we write about
Sleep
Sleep stages, recovery and why quality counts for more than raw duration.
2 posts
Training
Load, recovery and how to place sessions around your daily readiness.
2 posts
Everyday
Shift work, stress and routines that fit into a day that is already full.
3 posts