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> As mentioned in the article, wearables monitoring heart rate variability do quite a good job of telling people ahead of time that your body might be trying to
by tzs 2y ago
> As mentioned in the article, wearables monitoring heart rate variability do quite a good job of telling people ahead of time that your body might be trying to fight something. During covid devices monitoring HRV would spike before people started to present with the symptoms of COVID-19.
I think the article was talking about changes in heart rate, e.g., increases or decreases in the beats per minute. It certainly makes sense from an English point of view to call that heart rate variability but it turns out there is an actual medical term "heart rate variability" (HRV) that means something a little different.
Heart rate: count the number of beats in a minute.
Heart rate variability: how the beat to beat interval changes.
So say if you have a rate of 60 beats per minutes the average time between beats will be 1000 ms, but the actual times will vary around that. HRV is a measure of that variation.
Some wearables do track both rate and HRV.
- NoPicklez 2y agoNo I was absolutely talking about heart rate variability in my comment and I wasn't confused by the term. The article was talking about wearables being able to measure these types of metrics and what average people do in response to those metrics. The article spoke about a Ring which indicated to the author that they were becoming sick, this watch also uses HRV and uses HRV amongst other metrics to determine things like illness. Yes wearables measure both HR and HRV, I was talking specifically about HRV.