I have found HRV to be remarkably accurate at 'predicting' illness (seeming to indicate that HRV is impacted before I notice symptoms). Do others see the same?
I do need to account for 3 other variables:
+ did i drink alcohol that night
+ did i eat a large meal right before bed
+ did i go on a long run (20+ minutes) that day
Those 3 significantly decrease my HRV (alcohol the most). On the other side, not eating within ~6 hours of bedtime significantly increases my HRV, and moderate exercise increases my HRV.
Curious what others are seeing? I have measured with watches and rings - both which only measure at night.
I have seem multiple times my HRV indicate my sickness as a leading indicator for strep, food poisoning and altitude sickness, and even for COVID. Anecdata of course
I do need to account for 3 other variables:
+ did i drink alcohol that night
+ did i eat a large meal right before bed
+ did i go on a long run (20+ minutes) that day
Those 3 significantly decrease my HRV (alcohol the most). On the other side, not eating within ~6 hours of bedtime significantly increases my HRV, and moderate exercise increases my HRV.
Curious what others are seeing? I have measured with watches and rings - both which only measure at night.