Essentials: How to Focus to Change Your Brain

**Andrew Huberman** (0:00)
Welcome to Huberman Lab Essentials, where we revisit past episodes for the most potent and actionable science-based tools for mental health, physical health and performance.
My name is Andrew Huberman, and I'm a professor of neurobiology and ophthalmology at Stanford School of Medicine. Today, we're talking about neural plasticity, which is this incredible feature of our nervous systems that allows it to change in response to experience. Neural plasticity is arguably one of the most important aspects of our biology. It holds the promise for each and all of us to think differently, to learn new things, to forget painful experiences, and to essentially adapt to anything that life brings us by becoming better. So let's get started. Most people are familiar with the word neural plasticity, which is the brain and nervous systems ability to change itself. All of us were born with a nervous system that isn't just capable of change, but was designed to change. When we enter the world, our nervous system is primed for learning. The brain and nervous system of a baby is wired very crudely. The connections are not precise. And we can see evidence of that in the fact that babies are kind of flopping there like a kind of a little potato bug with limbs. They can't really do much in terms of coordinated movement. They certainly can't speak. And they can't really do anything with precision. So I want you to imagine in your mind that when you were brought into this world, you were essentially a widely connected web of connections that was really poor at doing any one thing. And that through your experience, what you were exposed to by your parents or other caretakers, through your social interactions, through your thoughts, through the languages that you learned, through the places you traveled or didn't travel, your nervous system became customized to your unique experience. Now, that's true for certain parts of your brain that are involved in what we call representations of the outside world. A lot of your brain is designed to represent the visual world or represent the auditory world or represent the gallery of smells that are possible in the world.
However, there are aspects of your nervous system that were designed not to be plastic. They were wired so that plasticity or changes in those circuits is very unlikely. Those circuits include things like the ones that control your heartbeat, the ones that control your breathing, the ones that control your digestion. And thank goodness that those circuits were set up that way because you want those circuits to be extremely reliable. So many nervous system features like digestion and breathing and heart rate are hard to change. Other aspects of our nervous system are actually quite easy to change. And one of the great gifts of childhood, adolescence and young adulthood is that we can learn through almost passive experience. We don't have to focus that hard in order to learn new things. And then after age 25, if we want to change those connections, those super highways of connectivity, we have to engage in some very specific processes. And those processes as we'll soon learn are gated, meaning you can't just decide to change your brain. You actually have to go through a series of steps to change your internal state in ways that will allow you to change your brain. I'd like to take a quick break and thank one of our sponsors, David. David makes a protein bar unlike any other. It has 28 grams of protein, only 150 calories and zero grams of sugar. That's right, 28 grams of protein and 75% of its calories come from protein. These bars from David also taste amazing. My favorite flavor is chocolate chip cookie dough. But then again, I also like the chocolate fudge flavored one. And I also like the cake flavored one. Basically, I like all the flavors. They're incredibly delicious. For me personally, I strive to eat mostly whole foods. However, when I'm in a rush or I'm away from home or I'm just looking for a quick afternoon snack, I often find that I'm looking for a high quality protein source. With David, I'm able to get 28 grams of protein with the calories of a snack, which makes it very easy to hit my protein goals of one gram of protein per pound of body weight each day. And it allows me to do that without taking in excess calories. I typically eat a David bar in the early afternoon or even mid afternoon if I want to bridge that gap between lunch and dinner. I like that it's a little bit sweet, so it tastes like a tasty snack, but it's also given me that 28 grams of very high quality protein with just 150 calories. If you would like to try David, you can go to davidprotein.com/huberman.