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Your RHR spiked this morning. 9 bpm above baseline.
Seems not much but it's your body flagged it before you felt anything.
Poor sleep, stress, hard training, alcohol, all of it shows up here first.
Rest instead of push.
9/
For anyone who trains, RHR is a recovery traffic light.
A spike the morning after a hard session = you're not recovered yet. (Now the CUDIS recovery score helps too)
Athletes who guided training with RHR, HRV and how they felt outperformed those who didn't. (Alfonso et
Your body has two modes: Survival and Recovery.
Your RHR tells you which one it's on.
A lower RHR means your nervous system spends more time recovering — higher parasympathetic tone, less strain on your heart, deeper repair every night.
It is far more than just a fitness
6/
Why would a slower heart mean a longer life?
A lower RHR → higher parasympathetic (vagal) tone → less oxygen demand on the heart → a body that recovers, not one stuck in overdrive.
Efficiency compounds over a lifetime.
234,000 people. One number predicted who lived longer.
Not weight, nor blood pressure.
It was Resting Heart Rate.
Men with an RHR of 70–79 bpm had 39% higher all-cause mortality than those under 60.
4/
The human data is just as striking.
A study of ~234,000 people found: Men with RHR 70–79 bpm had a 39% higher all-cause mortality risk vs those under 60.
Women at 80–89 bpm: 21% higher.
(Archangelidi et al., 2018)
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Your best lifestyle companion.
Recovery & Strain are now live in CUDIS, with no subscription.
Recovery: your readiness, scored from HRV, resting heart rate, and sleep.
Strain: the load your body is actually taking on today.
Together, they answer the only question that matters:
push, or rest?
10/
The catch: RHR only means something when measured at true rest — quietly, in the early morning, before you're even out of bed.
That's exactly when CUDIS reads it for you — feeding into your CUDIS Age.
Full breakdown + the science👇
9/
For anyone who trains, RHR is a recovery traffic light.
A spike the morning after a hard session = you're not recovered yet. (Now the CUDIS recovery score helps too)
Athletes who guided training with RHR, HRV and how they felt outperformed those who didn't. (Alfonso et
8/
The good news: RHR is trainable and here are some steps:
✔️150 min/week of aerobic work
✔️Manage weight, especially around the middle
✔️7–8 hrs of real sleep + breathwork
✔️Keep caffeine away from bedtime
Stay consistent, and your RHR can quietly drift down.
7/
But lower isn't infinitely better.
60–80 bpm is the typical adult range (men often 55–75).
Endurance athletes living at 40–50 bpm are usually just "athlete heart" and completely normal.
Below 50 with dizziness or fatigue is worth a check-in.