There are multiple factors that influence HRV. Stress is one of them, but others have to do with heart health. You improve heart health mainly through exercise and diet. Rest is something that needs to be balanced with exercise.

I began making notes for myself about characters in series while reading The Shadow Campaigns!

Around here, someone would be more likely to say, "I'm not firing on all cylinders today."

I understand it to mean that one hasn't been thinking clearly, and has been making silly mental mistakes. I grew up in the midwestern United States, but I don't think I know anyone around here who would say that. It seems likely British, and I've only encountered it reading.

How tall is a meter? It's the distance light travels in a vacuum in one 299792458th of the time it takes a caesium-133 atom to resonate for 9192631770 ground-state hyperfine transitions. That's very intuitive for most people, but for everyone else, I guess it's about waist-high.

This basically means that more inconvenienced air travelers reached out to their Congressional representatives than did individuals and families who will struggle with healthcare costs.

Definitely my favorite Django Wexler series