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Stuart M Phillips

Stuart M Phillips

Researcher

Aug 19, 2026

5:32
Why do those fundamentals outperform everything else?
5:36
There's a whole industry selling entrepreneurs productivity hacks, cold plunges, nootropic stacks, supplement stacks, the perfect morning routine, a new note-taking system.
5:48
I'm not here to dunk on any of it.
5:50
I am here to talk about leverage.
5:52
So as a founder, your scarce resource is attention, and you should spend it where the return is biggest.
5:59
So let me give you the four big levers, sleep, nutrition, movement, and muscle.
6:05
These aren't hacks.

13 MINS LATER

19:28
But the biggest thing that I hear is, "JLD, I have no time." So what's the minimum effective dose of health habits that actually can deliver the biggest return?
31:36
I mean,
31:37
we've done weight loss trials.
31:39
Everything we've done in weight loss has always been in conjunction with exercise, right? So, you know, just flat out admitting we've never just restricted energy and asked people to lose weight.
31:50
So we've always combined it with exercise and we found that in women, for example, they can actually do the, it's the holy grail of body, what's called recomposition, which is lose fat, but gain muscle on 1.3 grams of protein per kilogram body weight per day.
32:09
So in that sort of 0.4 to 0.5 grams of protein per pound.
32:14
So it's not like it's impossible to do, it's difficult, But you do have to provide a resistive stimulus to the...
32:22
So you have to do some form of weightlifting or really I think I'll call it some type of hatha yoga, like a sort of an aggressive yoga posing, not just the static hold poses.
37:32
But he would say that exercise is king, nutrition is queen, and put them together and you have a kingdom.
35:38
So any other thoughts on like sleep, how to kind of mentally wrap your head around?
35:43
So spot on.
35:43
I mean, I think I think that, you know, and there's a perfect analogy in the in the sporting world.
35:49
And when you talk to people at the really high levels of sport, they you know, they want to track a lot of things, particularly in season around sleep.
35:56
you know, what's this injury doing? How do you feel and everything like that? And, you know, so you could do urine samples, blood samples and all of these things and measure like a million different things and then look for what's predicting, you know, are we heading into a phase with a particular player or something like that, where there might be a greater risk of injury.
36:16
Some people have tried that sort of thing.
36:18
And yet they find that the thing that kind of correlates best is when the player self reports, like, I'm a four out of 10, where 10 is like, I'm crushing it, right? And when you're in season, you make, you could expect maybe you're never higher than a seven, you know, because you're, you know, experiencing everything.

9 MINS LATER

45:54
Can you maybe explain why as well?
3:50
So the question is this, the timing of the meal and the workout.
3:55
Yeah.
3:56
We used to think that it mattered quite a bit about w- you know, when the timing was immediately before or immediately afterwards, and I think all the research that's been done since that time has shown us that the window of opportunity for getting protein before or after is actually open for a really long time.
4:11
So, uh, I stress about that far less and just say sometime in the three to four hours afterwards is probably a good window.
5:12
Phillips also wanted to add a little bit of perspective to the entire discussion.
5:16
R- really try to de-complicate a lot of this stuff.
5:19
My take is that when I look at social media in particular, it's made very, very confusing, and I think that's a little, um...
5:29
Like it's a bit of a marketing ploy to get people to buy into someone's program or someone's supplements or whatever it is.
18:44
as opposed to these sort of hormonal
18:46
layers that you put on top of it.
18:47
And I know everybody then sort of talks to me about going through puberty as being this big surge of testosterone and everything.
18:56
And I'm like, that's true, but it happens one time in your life, and it literally is like a fold difference in hormonal concentration, as opposed to the small variations in these hormones that women would experience, say, across a menstrual cycle, and even their decline through perimenopause.
19:18
When we pull those things apart, we see far less evidence that it's working on a molecular level in humans.
19:24
So that cued us to at least be, to quote Ted Lasso, to at least be curious, to ask the question.
19:33
So you design some human experiments and you do a few things, you manipulate experimental designs.

20 MINS LATER

39:58
When we think about longevity and we think about aging well, is there something that surprises you about what keeps people really independent?
17:01
Are they under eating? Are they not eating the right kind? What are we missing? And what is the appropriate number that we should just really be using as a guideline?
17:10
Yeah, yeah.
17:11
You hit on an interesting point in asking the question, and it sort of struck me quite a bit, is that people are confused.
17:20
And that's a shame, because I do have a friend, she works on the social science side of things, but who will tell me that women are the least confident in themselves about And they feel, and this is horrible, but they feel badly about how they look and everything else like that.
17:40
And it peaks at twice, two points in their life.
17:43
One is during adolescence.
17:45
and puberty.

12 MINS LATER

speaker_7ADVERTISER
29:45
no,
19:34
[chuckles]
19:34
So, okay.
19:35
So 20 amino acids, and then nine of them are essential.
19:40
Uh, within the essential, we've got these three special branched-chains, but I'm telling you that only one is kinda like the big deal.
19:47
It, it, it fires up the process and, you know, if you don't have it, then it doesn't work, or if you just give it and don't give the others, it doesn't work.
19:57
So, so I think the, the sort of ethos is, is if you think about the branched-chains themselves, they all have this characteristic what we call side chain.
20:08
That's the branched-chain.

6 MINS LATER

25:48
Yeah.
27:20
And then maybe tie it back also to things like insulin resistance or chronic inflammation, how, how those things interact with anabolic resistance.
27:28
Yeah.
27:29
I, so anabolic resistance, um, describes the phenomenon that the two main stimuli that we have to turn on muscle protein synthesis, so, so to make new muscle, push amino acids into muscle protein, are, are exercise and the consumption of dietary protein.
27:50
So we then, we raise amino acids in our blood and we stimulate the formation of new muscle.
27:56
Um, you know, as you get older, what we've found for a given dose, so if you compare a 20-year-old, let's say, to, and the data that at least that we've generated would be somebody probably in their late 60s, early 70s.
28:10
So that, you know, that's a fairly steep ob- obviously, uh, incline, but, um, the, the, the 70-year-old is not as efficient at making new muscle protein as the 20-year-old.
28:23
And so, you know, something's been, been lost, right? And the question is, you know, what is it, right? Is it, is it something like insulin resistance? Is it blood flow? Is it mitochondria? Is it...

6 MINS LATER

34:25
Yeah.
27:13
Mm-hmm.
27:13
So we can't really explain why that happens.
27:16
We've got some ideas, but those two, I'll just call them observations, to me, really indicate that the methodology is not particularly good.
27:26
So, you know, fast forward to 2025, we've got some methodologies now that I think are better.
27:34
Um, the problem is, in science, is, is coming to some degree of agreement about how good those methodologies are.
27:41
And I'll be honest about that.
27:43
So not everybody agrees.

36 MINS LATER

63:28
No, I get it.

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