Summary
Andrew Huberman breaks down the neuroscience of skill learning, covering the distinction between open-loop and closed-loop motor skills and how to allocate attention during practice. He debunks the 10,000 hours rule, showing that the key variable is repetitions per unit time rather than total hours, and explains how errors are the essential trigger that opens the door for neuroplasticity.
The episode covers a practical protocol: maximize repetitions and errors during focused practice sessions, then immediately follow with 5-10 minutes of idle rest to allow the brain to replay and consolidate motor sequences. Huberman also discusses the role of metronomes for intermediate-to-advanced learners, why ultra-slow movements are only useful after reaching 20-30% proficiency, the limits of visualization training compared to physical practice, and how Alpha GPC (300-600 mg) can enhance power output by up to 14%.
Key Points
- Skill learning speed depends on repetitions per unit time, not total hours
- Errors are the primary trigger for neuroplasticity — they open the window for the brain to change
- After practice sessions, 5-10 minutes of idle rest allows the brain to replay and consolidate motor patterns
- The Super Mario effect: reframing failure as neutral feedback ("that did not work, try again") led to 68% success vs 52% when participants lost points for errors
- Ultra-slow movements only help once you reach 20-30% proficiency — before that, you miss proprioceptive feedback and generate too few errors
- Metronomes can accelerate learning for intermediate and advanced practitioners by cueing attention externally and increasing repetition density
- Visualization activates upper motor neurons but is not equivalent to physical practice — use it as a supplement, not a replacement
Key Moments
Electrolytes: How To
I'm mainly going to focus on athletic performance. There are basically two types of skills, open loop and closed loop.
"Open loop skills are skills where you perform some sort of motor action and then you wait and you get immediate feedback as to whether or not it was done correctly or not. A good example would be throwing darts at a dartboard."
Caffeine: Performance
There are a few compounds that I think are worth mentioning because of their ability to improve the actual physical performance, the actual execution of certain types of movements.
"And so really you need a bit of proficiency. Again, this is for people who are intermediate or advanced, intermediate or advanced. But what you're essentially doing is you're creating an outside pressure, a contingency so that you generate again, more errors. So it's all about the errors that you get. And if you harness your attention to this outside contingency, this metronome that's firing off and saying, now, go, now, go, now, go. Not only can you increase the number of repetitions, errors, and successes, but for some reason, and we don't know why, the regular cadence of the tone, of the metronome, and the fact that you are anchoring your movements to some external force, to some external pressure, or cue, seems to accelerate the plasticity and the changes and the acquisition of skills beyond what it would be if you just did the same number of repetitions without that outside pressure. I'd like to take a quick break and acknowledge one of our sponsors, Matina. 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I also love their loose leaf Matina, which I drink every morning from the gourd. So I add hot water and sip on that thing and I'll have some cold brews throughout the morning and early afternoon. I find it gives me terrific energy all day long and I'm able to fall asleep perfectly well at night, no problems. If you'd like to try Matina, you can go to drinkmatina.com slash Huberman. Right now, Matina is offering a free one pound bag of loose leaf yerba mate tea and free shipping with the purchase of two cases of their cold brew yerba mate. Again, that's drinkmatina.com slash Huberman to get a free bag of yerba mate loose leaf tea and free shipping. Let's talk about visualization and mental rehearsal. I've been asked about this a lot, and I think it relates back to that kind of matrix Hollywood idea that we can just be embedded with a skill. But the question we're going to deal with today is, does it help? Does it let you learn things faster? And indeed, the answer appears to be yes, it can. However, despite what you've heard, it is not as good. It is not a total replacement for physical performance itself. Okay. So I'm going to be really concrete about this. I hear all the time that just imagining contracting a muscle can lead to the same gains as actually contracting that muscle. Just imagining a skill can lead to the same increases in performance as actually executing that skill. And that's simply not the case. However, it can supplement or support physical training and skill learning in ways that are quite powerful. Mentor rehearsal, closing one's eyes typically, and thinking about a particular sequence of movement and visualizing it in one's quote unquote mind's eye, creates activation of the upper motor neurons that's very similar, if not the same, as the actual movement. And that makes sense because the upper motor neurons are all about the command for movement. They are not the ones that actually execute the movement. Okay? Remember, upper motor neurons are the ones that generate the command for movement, not the actual movement. The ones that generate the actual movement are the lower motor neurons and the central pattern generators. So the point is, if you want to use visualization training, great, but forget the idea that visualization training is as good as the actual behavior. You hear this all the time. People say, do you know that if you imagine an experience to your brain and to your body, it's exactly the same as the actual experience? Absolutely not. This is not the way the nervous system works. I'm sorry. I don't mean to burst anybody's bubble but um your bubble is made of myths and the fact of the matter is that the brain when it executes movement is generating proprioceptive feedback and that proprioceptive feedback is critically involved in generating our sense of the experience and in things like learning so i don't say this because I don't like the idea that visualization couldn't work. In fact, visualization does work, but it doesn't work as well. It doesn't create the same milieu, the same chemical milieu, the same environment as actual physically engaging in the behavior, the skill, the resistance training, et cetera. Many of you are probably asking, what can I take in order to accelerate skill learning? Well, the conditions are going to vary, but motivation is key. You have to show up to the training session motivated enough to focus your attention and to perform a lot of repetitions in the training sequence. That's just a prerequisite, right? There's no pill that's going to allow you to do fewer repetitions and extract more learning out of fewer repetitions. It's actually more a question of what are the conditions that you can create for yourself such that you can generate more repetitions per unit time. I think that's the right way to think about it. What are the conditions that you can create for yourself in your mind and in your body that are going to allow you to focus? There are a few compounds that I think are worth mentioning because of their ability to improve the actual physical performance, the actual execution of certain types of movements. And some of these have also been shown to improve cognitive function, especially in older populations. So I'd be remiss if I didn't at least mention them. I'm only going to mention one today. In fact, the one that's particularly interesting and for which there really are a lot of data is alpha GPC. And I'm going to attempt to pronounce what alpha GPC actually is. It's alpha glycerophosphocholine, right? Alpha GPC, alpha glycerophosphocholine. See, if I keep doing it over and over repetitions, alpha glycerophosphocholine. There, I made an error. Okay, so the point is that alpha GPC, which is at least in the United States is sold over the counter, typically is taken in dosages of about 300 to 600 milligrams. That's a single dose or have been shown to do a number of things that for some of you might be beneficial. One is to enhance power output. So if you're engaging in something like resistance training or sprinting or something where you have to generate a lot of power, well then in theory, alpha GPC could be beneficial to you. A study noted a 14% increase in power output. That's pretty substantial, you know, 14% if you think about it, but it wasn't like a doubling or something of that sort. So as you can see, things like alpha GPC in particular, when they are combined with low levels of caffeine can have these effects of improving power output, can improve growth hormone release, can improve fat oxidation. All these things in theory can support skill learning, but what they're really doing is they're adjusting the foundation upon which you are going to execute these many, many repetitions, okay? The same thing would be said for caffeine itself. If that's something that motivates you and gets you out of a chair to actually do the physical training, then that's something that can perhaps improve or enhance the rate of skill learning and how well you retain those skills. Now, on a previous episode, I talked about, and this was the episode on epinephrine, on adrenaline, I talked about how for mental, for cognitive learning, it makes sense to spike epinephrine, to bump epinephrine levels up, adrenaline levels up after cognitive learning. For physical learning, it appears to be the opposite. That if you are, if caffeine is in your practice, or if you decide to try alpha GPC, that you would want to do that before the training, take it before the training, use it. Its effect should extend into the training, presumably throughout. A lot of the questions I get are about how different protocols and things that I describe start to collide with one another. So let's say for instance, you go to bed at 1030 and you're going to do your skill training at 930. Well, taking a lot of caffeine then is not going to be a good idea because it's going to compromise your sleep. So I'm not here to design the perfect schedule for you because everyone's situations vary. So the things to optimize are repetitions, failures, more repetitions, more failures at the offset of training, having some idle time that could be straight into sleep, or it could be simply letting the brain just go idle for five to 10 minutes, be not focusing on anything, not scrolling social media, not emailing, ideally not even talking to somebody, just lying down or sitting quietly with your eyes closed, letting those motor sequences replay. Use things like metronoming, where you're cuing your attention to some external cue, some stimulus, in this case, an auditory stimulus most likely, and trying to generate more repetitions per unit time. So you now are armed with a lot of information about how you generate movement. And I like to think that you're also armed with a lot of information about how to design protocols that are optimized for you, or if you're a coach for your trainees in order to optimize their learning of skills of various kinds. And I should say that for those of you that are short on time or have limited amounts of time, 10 minutes of maximum repetitions, maximum focus skill learning work is going to be very beneficial. It's really about the density of training inside of a session. So I think you should let the, you know, work toward maximal or near maximal density of repetitions and failures provided their failures, you can perform safely in order to accelerate skill learning and don't let some arbitrary, or in this case, the ultradian constraint prevent you from engaging in that practice. In other words, get the work in, get as much work done as you can per unit time. And based on the science, based on things that I've seen, based on things that I'm now involved in with various communities, you will see the skill improve vastly at various stages. Sometimes it's a little bit stutter start. It's not always a linear improvement, but you will see incredible improvement in skill. Today, we talked all about skill learning. I hope that you'll consider the information. You might even decide to try some of these tools. If you do, please let us know your results with them. Give us feedback in the comments. And as always, thank you for your interest in science."
