No ten-thousand-crown watch? No problem. Resting heart rate is the cheapest and one of the most reliable indicators of whether you’ve recovered — and all you need is a finger and a stopwatch.
What resting heart rate is
Resting heart rate (RHR) is the number of heartbeats per minute at complete rest — best measured in the morning right after waking, still lying down. In trained athletes it tends to be low (often 40–55), because a strong heart can pump more blood per beat.
Why it says so much about you
When the body is rested, the heart “takes it easy” at rest. But when you’re dealing with high load, lack of sleep, stress or “something brewing” in you, the nervous system stays on higher alert and resting heart rate rises. That’s why a raised morning heart rate is one of the first signals that something’s off — often before you feel it.
How to read it
- Learn your normal. Measure yourself for a few mornings in a calm week and you have a baseline.
- A rise of 5–10 beats above normal (over several days) = under-recovery, stress or approaching illness. Slow down.
- A long-term drop in RHR over weeks = your fitness is improving. A good sign.
- Don’t worry about one morning fluctuation — the trend is what matters.
How to measure it
By hand: in the morning, lying down, find your pulse at the wrist or neck, count for 30 seconds and multiply by two. Or let your watch handle it overnight. NEXT8 pulls resting heart rate from Apple Health / Health Connect and highlights it when it deviates from your normal — and combines it with HRV, sleep and load, so you don’t look at one number but at the whole picture.
In short
- Morning resting heart rate is a cheap and reliable recovery indicator.
- A rise of 5–10 beats above your normal = slow down.
- A long-term drop = fitness is improving.
- Measure in the morning at rest and track your own trend.
You might be interested
Try NEXT8 for free
Morning readiness, injury risk and a training diary in one app. iOS and Android, 3 days free.