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 months

Recordings per month over the last 12 months — 1 in all, peaking in Apr 2026 with 1.

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The mindbodygreen Podcast · 645: The truth about cognitive decline and what you can do about it | Tommy Wood, M.D., Ph.D. · 12 Apr 2026 podcast

So anything, any time you spend just focusing on something is going to be beneficial.

And then you release a whole host of factors.

And I think one of the reasons why I think this one particular factor, IGF-1, is critical is because of where resistance training seems to act in the brain.

So we know that when you do resistance training, you increase IGF-1 levels.

IGF-1 levels tend to decline with age.

Lower IGF-1 is associated with a higher risk of dementia.

But throughout the entire lifespan, and this includes some of the stuff that I do early in life in my neonatal brain injury, you see that IGF-1 is critical for the development and function of the white matter of the brain.

So I think that's an important tie between resistance training and white matter structure.

But I think all the other things you mentioned play a big role as well.

And

If we can spend our time focusing on these different interventions that do a whole bunch of things at the same time, that's why we get, I think that's why they give us such big bang for our buck.

The way that I think about it, I have essentially like three levers or three interacting aspects of diet that I sort of talk about.

So the first, which is really critical, particularly in the modern food environment, is just energy.

It's simply a total amount of calories.

And particularly when you're talking to audiences who are focused on longevity, athletic performance, this is an important thing to focus on because basically there's like a bell-shaped curve between brain structure and function and energy status.

So at the high end, we see cardiovascular disease, we see metabolic disease, we see obesity, and we see obesity.

Smaller brain volumes, higher risk of dementia, faster cognitive decline.

I call it excess energy availability, but it's almost like some degree of energy toxicity because the body's energy state is dysregulated.

That's essentially what metabolic disease is.

That's definitely associated with an increased risk of cognitive decline and dementia.

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