3min chapter

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What is Heart Rate Variability, And How to Use It to Optimize Your Life (orig. aired on Ben Greenfield Fitness podcast)

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CHAPTER

The Difference Between S D and R M S S D

Both require different time domains to get accurate measurement or usable data. So s d n n requires a minimum of five minutes, but in reality, it's really only clinically relevant if we assess aer 24 hour period. While the r m s s d metric has actually been shown to provide valuable interpretations at is low as ten seconds, 30 seconds and a hundred 80 seconds. However, like s d an n, rm s s d, is most accurate over a five minute period.

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Speaker 2
Well, the reason why there's so much overlap is because the fathers were exegites, right? I mean, the Nicene Creed is essentially a long commentary on John 1 and Hebrews 1 and a couple of other passages. You know, so I always have my students all, I'll have them read John 1 and put the Nicene Creed next to each other and just have them talk through the, the similarities in language, you know, light these different languages that you see there. And so that, I mean, in some sense, you can even make the historical claim that this is always happening. I mean, you brought up Irenaeus, right, thinking about how there's just, there's an argument that, you know, the only reason why we have the doctrine of the Trinity is because of these external pressures from heretics. So they had to like figure out what they believed, right? Then it's just really a political power play, you know, majority wins. When in reality, what, what you see is happening, of course, there's, I'm sure there's politics and things involved church fathers weren't perfect by any stretch of imagination. Oh, like politics. Yeah, that's right. Yeah. But there is a sense in which like, Irenaeus already has a pretty good idea of what is biblical or what's not because of the role of faith, because this thing that's already existing, that he's able to respond to the Gnostics not going, oh, maybe they're right, I'll think about it. No, they're wrong. It's like, no, you guys are wrong because we already have this deposit that we already know. And then you get to Nicene, you have the same thing, you know, these sort of contextual language that's saying the same things as what's happening before. So you guys do a really good job. All that to say, I'm just drawing some of that, some of that stuff out. So let's move on to, I think that the one kind of big doctrine I wanna spend a little bit of time on, yeah, in several operations and appropriations. These are topics that I've thought a lot about, topics you thought a lot about, I know you worked really hard on this particular chapter. You know, VDU, I talked to him a little while back on the podcast about his book, which is just, you know, a big, doing a lot of stuff. It's one of those, it's one of those doctrines that I feel like, I mean, everybody says that nobody pays enough attention to the doctrine that they like the most, right? That's sort of the move. But it does seem like this was a really important move, particularly theologically, exegetically, in the early church. And it's kind of seeing a little bit of a resurgence now. I think when people are realizing how important and how much work it actually does. So I wanna talk about that a little bit. So I'm not gonna read all of the rules here because they're a little bit longer than I want people to try to listen to me read a book. But you have chapter five, where you talk about the oneness of God. And then you've got chapter six, where you're talking about the inseparable operations and appropriation. And you can't separate these two things from each other, right? So Greg Ives-Nessa makes the point, you know, sort of Deuteronomy six is the controlling factor by which we understand all of scripture. So God is always one and he's not not one just because we have the Son and Spirit. So maybe we'll start there, start with kind of a big picture there in terms of particularly reading scripture. What do we do with the oneness of God? And then we can talk a little bit how to sort of flush that out in the sort of distinctions that we see.
Speaker 1
Yeah, chapter six and seven, you know, a bit of history there. It was initially, you know, the reason Sababi wrote chapters seven through 10 and the introduction. I wrote the conclusion chapters one through six. And people might say, well, why did you write more of the book? Well, it's because we had each planned on writing four chapters. My chapters just kept splitting
Speaker 2
and getting bigger, right?

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