Heart rate as a measure of ME/CFS-relevant exertion/severity

[josepdelafuente]

Completely anecdotally - I read an article I think in The New Yorker that made the claim that all mammals seem to have roughly the same average total number of heartbeats over their whole lifespan. So any being with a higher average heart rate would have a shorter overall life, lower average heart rate would have a longer overall life. And this seemed to apply between animals of the same species (e.g different humans) and between different animals... if that makes sense

 

[forestglip]

I get a higher HR from being on S4ME on my phone while lying flat (with betablockers), than what my sister gets from walking at a fast pace for an hour.

Just double checking something if you want to share: are you saying the amount your HR increases versus resting is very high compared to a healthy person, or is it substantially higher all the time, and the increase from being on your phone is fairly minimal?

Edit: Either way, I think that is true, that when someone is more fit, exertion doesn't tend to increase their HR as much. Which would throw a wrench into my idea.