Peter Attia· MD
we also add another metric which is relative perceived exertion RP um I'll tell you what my rule of thumb is but I'd like you to sharpen it refine it throw it out make it better whatever I tell patients based on my experience so I don't know how extrapolatable that is when I'm in zone 2 as confirmed by lactate levels so call it 1.7 to 1.9 Millo which is what I Target I can carry out a conversation so I can spend my entire because I do most of mine on a on a wahoo kicker nice I can spend the entire 45 minutes on a phone call yes absolutely but it's not as comfortable as this discussion here exactly I'm a little more strained yeah but if I can't talk if I feel like I can't talk I'm too high in the intensity yeah do you think that that's a reasonable surrogate for people to use across the spectrum of not particularly fit all the way up to pogacha