Recovery
How ready your body appears to be today
Recovery in CROSSNote is not based on a single number.
Instead, it estimates how your body appears to have recovered overnight by combining several physiological signals and comparing them with your own recent baseline.
What CROSSNote looks at
CROSSNote combines:
heart rate variability,
minimum overnight heart rate,
how quickly heart rate settled during the night,
sleep duration,
sleep efficiency,
recent physical load,
and your personal baseline.
Compared with your own normal range
CROSSNote does not evaluate your physiological values as isolated numbers.
For each signal, CROSSNote compares today’s value with your own typical range. This means a value can be interpreted as lower than usual, within your normal range, slightly above your usual range, or much higher than usual.
This matters because the same HRV or heart rate value can mean different things for different people. What is normal for one person may be unusually high or unusually low for another.
By using your own baseline, CROSSNote gives more context to each reading instead of treating everyone as if they had the same physiology.
Why heart rate variability matters
Heart rate variability, or HRV, reflects how flexibly your nervous system is adapting.
In general, higher HRV compared with your own baseline can suggest that your body has more regulatory capacity available. Lower HRV can suggest that the system is under more strain, still recovering from accumulated load, or responding to stress, poor sleep, illness, alcohol, travel, or intense training.
CROSSNote does not interpret HRV as a universal number. It compares your current HRV with your own recent patterns, because the same value can mean very different things for different people.
Why minimum overnight heart rate matters
Minimum overnight heart rate gives another view of how deeply your body was able to settle during sleep.
When recovery is going well, heart rate often drops during the night as the body shifts into a calmer, more restorative state. A lower minimum heart rate compared with your own baseline can suggest that the system reached a stronger state of physiological rest.
If minimum overnight heart rate remains higher than usual, it may suggest that the body was still carrying load during the night. This can happen after stress, illness, alcohol, intense training, dehydration, travel, or poor sleep quality.
Why the timing of heart rate settling matters
CROSSNote also looks at how long it took for heart rate to settle during the night.
This is different from simply looking at the lowest heart rate value. Two nights can reach a similar minimum heart rate, but one may reach it early and stay stable, while the other may remain elevated for much longer and only drop late.
A late drop can suggest that the body took longer to shift from daytime activation into recovery. This may happen after alcohol, a late or heavy meal, intense evening exercise, emotional stress, illness, dehydration, travel, or irregular sleep timing.
In these cases, total sleep duration may look acceptable, but effective recovery may have started later than expected.
Why sleep quality matters
A high HRV value can be encouraging, but it does not automatically mean full recovery.
If sleep was too short, fragmented, or heart rate took longer than usual to settle, CROSSNote adjusts the recovery estimate to reflect that your system may not have had enough time or stability to restore properly.
How to read recovery
Recovery is a practical estimate of how supported your body appears to be today.
A higher score may suggest more capacity for effort, focus, or training.
A lower score is not necessarily “bad.” It may simply indicate that today is better suited for lighter activity, steadier pacing, or more restoration.
Not a medical diagnosis
CROSSNote does not diagnose health conditions or replace medical advice.
It provides a personalized recovery estimate designed to help you understand your daily physiological context.