Is your resting heart rate healthy? Here’s how to check – and what to do if yours is too low or too high
Is your resting heart rate healthy? Here’s how to check – and what to do if yours is too low or too high
www.runnersworld.com
Is your resting heart rate healthy? Here’s how to check – and what to do if yours is too low or too high

One interesting thing that articles like this don't often mention, is that when your resting heart rate drops due to fitness, it tends to stay lower even if you lose your fitness later on.
Like, indefinitely? That's hard to imagine!
I mean, it increases again when you lose fitness, but it stays larger than it was before you got fit, so it remains lower than it was initially
In my case, when I was at my peak, I'd be in the high 30s, low 40s. When I lost my fitness, I sat in the mid to high 40s.
Before I took up distance running in the first place, my RHR was in the high 50s.