Tommy Wood
speaker
390 appearances
1 recordings
1 series
first heard Apr 2026
last heard 12 Apr
Tommy Wood’s voice in public audio — every appearance, attributed to the second.
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recordings per month · last 12 monthsRecordings per month over the last 12 months — 1 in all, peaking in Apr 2026 with 1.
Appearances
So like the zone two stuff was beneficial, but there was more benefit in the interval training group.
And that benefit was retained for at least five years.
They never do this in exercise studies, but they let these people go back to their normal training and they tracked.
They just went back to just doing whatever they were doing previously and that wasn't different between the groups.
But then they brought them back five years later and those benefits in terms of the structure and function of the hippocampus were retained in those benefit in the interval training group compared to the other two groups.
I mean, this is just amazing that they did this study and they found this stuff.
So there's something about intense cardio exercise that seems to have particular benefits for the brain.
And you see across the cardio spectrum, across that intensity spectrum of cardio, cardio seems to be particularly beneficial for the hippocampus and the gray matter of the brain and memory, in particular in terms of cognitive function.
So resistance training has different effects than cardio.
But there's something about that high intensity cardio.
And I think in this study, they sort of measured certain things and they saw that like more cortisol release during exercise was actually better because it was like showing that it was more intense exercise.
And that's important to bring up because right now, like everybody's against intense exercise and cortisol because they think like all cortisol is bad and you should avoid cortisol spikes as much as possible.
But along with that cortisol spike, you're getting stuff like lactate.
And so lactate goes into the brain.
It switches on the production of brain-derived neurotrophic factor, BDNF, which we know is like miracle growth for neurons and neuroplasticity.
So there's really something magic about that intense type exercise and the signals that those muscles then send to the brain.
No, I would argue that it doesn't matter at all.
I think what happens when we talk about specific studies, which I do a lot, I admit, we assume that that protocol they did in the study is like the protocol that we have to do.
But there are so many studies on different types of interval training, cognitive function, cardiovascular fitness, all that kind of stuff.
And so I would just say any modality where you can push yourself hard, you can feel the burn,
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