Stop Overthinking Your Workout: Your Brain Just Needs You to Move with Dr. Tommy Wood
3/16/20261 hr 29 min
Neuroscientist Dr. Tommy Wood breaks down what it actually takes to keep your brain sharp as you age. Drawing from his new book The Stimulated Mind, Tommy makes the case that movement is non-negotiable for brain health — and that even small amounts make a meaningful difference. From walking and resistance training to dancing and pickleball, different types of exercise protect different parts of the brain in ways that compound over time. The bottom line? You don't need a perfect plan. You just need to start.
Episode Overview:
(0:00) Intro/Teaser
(7:00) The Exercise Framework: From Snacks to Sprints
(11:00) The Norwegian 4x4 Study
(14:00) Lactate, BDNF & Why HIIT Is Good for Your Brain
(15:00) Resistance Training, White Matter & Decision-Making Speed
(17:00) Why Pickleball Beats the Recumbent Bike
(24:00) Stress, Cortisol & Inflammation
(31:00) Muscle as a Proxy for Brain Health
(40:00) Nutrition for Brain Health
(53:00) The Female Brain
(1:09:00) Brain Training: Languages, Video Games & the Power of Failing
(1:23:00) The After-Party with Dr. Stephanie
Resources mentioned in this episode: https://drstephanieestima.com/podcasts/ep460
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Clips
Showing 10 of 11Transcript preview
First 90 secondsTommy Wood· Guest0:00
I think we appreciate that the most important driver of physical function is how we use our bodies, right? If we wanna get stronger or fitter, then we need to train, or we need to lift weights, or we need to go running. And the brain is essentially the same. [slide whooshing] I think that we've gotten to the point where we're so worried about challenge and stimulus and stress that we're now avoiding things that- Right ... actually drive increased capacity.
Stephanie Estima· Host0:26
Mm-hmm.
Tommy Wood· Guest0:27
And that creates a vicious circle, right, so that we have less capacity, we're less able to tolerate things, we do less, and that's what then results in a decrease in, in, in function. [slide whooshing] So the Norwegian four- four by four, for those who are familiar with it, is four minutes at eighty-five to ninety-five percent of maximum heart rate, and then y- in this study they took a break for three minutes, and then they do that four times over. And they did this three times a week for six months.
Stephanie Estima· Host0:49
Three times a week?
Tommy Wood· Guest0:51
Yeah. And so if you've ever done this, this is, like... And these are, like- I- ... these are adults in their 60s. This is a, a fairly intense training program. [slide whooshing] Neuroscience has, in general, done a really bad job of studying the female brain over the past decades. For every one female animal included in a, in a neuroscience study, there were six male animals, right? Which, long story short, is complete nonsense. [slide whooshing] Like, an analogy I use is if you looked at heart surgery halfway through, it would look like murder, right? The chest is open. There's blood everywhere, all this good stuff. But, you know, long term, that has a really important, like [chuckles]— Right ... therapeutic benefit. And so the same is essentially