What Motorcycling Really Does to Your BRAIN (UCLA & Tohoku University Study)

Added: 2026-05-12

[00:00:00]People ask me all the time, why motorcycles? They're dangerous. They're expensive. Why bother? And for years I gave these weak answers. Freedom, stress relief, you wouldn't get it. But the real answer, I couldn't explain it. I just knew that after the worst day at work, 20 minutes on my bike would completely reset me.

[00:00:18]Leave the house stressed, come back calm. Leave angry, come back clear.

[00:00:23]Something was happening in my brain. I just [music] didn't know what. Then I found this research, two studies, different countries, different scientists. Neither one knew about the other, and suddenly it all made sense.

[00:00:35]Personal story.

[00:00:36]Look, I'm not someone who was looking for a reason to justify riding. I already ride. You probably do, too. But when someone asks, a partner, a parent, a co-worker, why do you risk it? I never had a real answer. It's freedom sounds hollow. It's relaxing sounds insane when you're talking about operating a two-wheeled machine at motorway speeds.

[00:00:57]What I knew was simpler than that. I knew that riding works on the hard days, on the days when nothing else does. I just couldn't tell you why. These two studies, one from a neuroscience lab in California, one from Japan, [music] finally gave me the answer.

[00:01:12]The California study.

[00:01:14]In 2021, a neuroscientist named Don Vaughn published a study in Brain Research, a peer-reviewed journal.

[00:01:21]Here's what makes it different from everything that came before. He didn't put people in a lab. He didn't use a simulator. He put real EEG sensors on real riders and sent them out on actual California roads. Then he measured everything, brain activity, hormones, heart rate, before, during, and after.

[00:01:38]Full disclosure, the study was funded by Harley-Davidson. I know. I know. But it was peer-reviewed and published in a legitimate scientific journal. The data is the data. So, what did the data actually show? Cortisol, your stress hormone, dropped significantly after just 20 minutes of riding. We're talking about a 28% reduction in stress biomarkers. That's the same drop you get from light exercise or meditation.

[00:02:04]Except you're on a motorcycle.

[00:02:06]At the same time, adrenaline went up.

[00:02:09]Heart rate rose about 11%. Think about what that combination actually means.

[00:02:14]Your stress is going down. Your alertness is going up. You're calmer and more switched on at the same time.

[00:02:20]That's not a coincidence.

[00:02:22]>> [music] >> Your brain is doing something specific.

[00:02:24]What the brain scan showed, the EEG data showed something even more interesting.

[00:02:29]When the same people drove a car over the same route, their brains wandered.

[00:02:33]Work, phone, random stuff, autopilot.

[00:02:36]The brain in a car is basically in screensaver mode. On the motorcycle, their prefrontal cortex, the part of your brain responsible for focus and decision-making, lit up >> [music] >> and stayed lit for the entire ride. The brain was also in a heightened monitoring state the whole time, constantly scanning, constantly processing, speed, balance, traffic, road surface, everything simultaneously, non-stop. [music] And here's the thing, your brain loves it. The researchers compared it to light exercise, but unlike running, riding engages your mind and body at the same time. You're not just moving, you're thinking, reacting, calculating, constantly. That's why you come home different. It's not the fresh air, it's what the ride does to your brain chemistry. The Japanese study.

[00:03:22]Now, here's where it gets genuinely surprising.

[00:03:25]Dr. Ryuta Kawashima is one of Japan's most respected neuroscientists. He works at Tohoku University. His specialty is how the brain changes based on what you do. You might know his work already, because Kawashima is the scientist behind Brain Age, the Nintendo DS game that sold over 19 million copies worldwide. The whole idea behind Brain Age was simple. Consistently challenge your brain and it gets stronger.

[00:03:49]Kawashima proved that with a video game.

[00:03:51]Then in 2009, Yamaha came to him with a question. Does riding a motorcycle actually change your brain? Not just in the moment, but over time? So, he designed an experiment, published the results in 2014. He recruited 22 men in their 40s and 50s. All of them had motorcycle licenses. None of them had ridden in over a decade. He split them into two groups. Group one, ride a motorcycle every day for two months, commuting, errands, whatever. Group two, control group, just live normally.

[00:04:20][music] Then he tested everyone's cognitive function, memory, concentration, spatial reasoning, before and after.

[00:04:27]The results. The results were staggering. The riders showed significant improvement in spatial cognition, the kind of 3D thinking you use to judge distances, read a corner, navigate. Their scores on that test jumped by around 21%.

[00:04:42]Memory and concentration also improved in the riding group. And the control group, basically nothing changed. Now, full disclosure again, Yamaha funded this study, and Kawashima himself called it a preliminary study, 22 people. He was upfront about the limitations.

[00:04:57]>> [music] >> But the brain imaging confirmed what was happening. When you ride a motorcycle, your prefrontal cortex activates in a way that driving a car simply doesn't trigger.

[00:05:07]Here's the part I couldn't stop thinking about. These men were in their late 40s and 50s. Research consistently shows certain cognitive abilities start declining in midlife. These men didn't just slow the decline, they improved.

[00:05:20]Two months of daily riding, that's it.

[00:05:22][music] The same principle Kawashima proved with Brain Age, challenge your brain consistently and it gets stronger.

[00:05:28]Works when you're on a motorcycle, except instead of a Nintendo DS, you're on a real machine. The challenge is real. The stakes are real. And the brain gains are more significant. Mental health and the bigger picture. So, what does all of this actually mean?

[00:05:43]Riding is therapy, and I don't mean that loosely. Can't stop thinking about work?

[00:05:48]That forced focus shuts down the mental loops. Feeling flat? That adrenaline boost gives you natural energy. Stressed out? [music] That 28% drop in stress hormones is real and measurable. There are now organizations across the US using motorcycle riding to help veterans with PTSD.

[00:06:06]Groups like the Motorcycle Relief Project, Veterans Charity Ride, Motorcycle [music] Missions. Not as a replacement for treatment, as a bridge.

[00:06:14]Something that works when nothing else will get through the door. The reason it works is exactly what both studies describe. When you're riding, there's no space for intrusive thoughts, no room for anxiety spirals, no bandwidth left for rumination. You're forced into the present moment. And that's where the brain resets. A man who won't walk into a therapist's office will ride a motorcycle, and something happens out there. Speaking of therapists, one thing worth mentioning, if you really want to go deeper into the psychology behind all of this, look up Mark Barnes. [music] He's a clinical psychologist who also rode motorcycles for 20 years. His book, Why We Ride, is basically this video, about in 300 pages. I've left a link for it in the description.

[00:06:57]The personal payoff. So, next time someone asks why you ride, isn't it dangerous?

[00:07:04]Why do you need to do that every weekend? You don't have to give them the freedom speech anymore. You can tell them your stress hormones dropped 28%.

[00:07:11]>> [music] >> You can tell them your prefrontal cortex runs at full capacity for the entire ride. You can tell them two months of regular riding improved spatial cognition by 21% in a group of middle-aged men. Or, and this is my preference, you just smile.

[00:07:26]Because now you know.

[00:07:28]It isn't just in your head, it is your head. You thought you were just refusing to grow old the way you were supposed to. Turns out your brain has been in on that rebellion the whole time. Name another hobby that does all of this. I can't think of one. If you ride, drop a comment. How long did it take before you noticed it actually doing something for your head? First month? First year? Or did it sneak up on you?

[00:07:52]Because that gap between when you started and when you felt the shift, that's actually interesting. I want to know. If this kind of deep dive into the science behind riding is your thing, consider subscribing. We cover the tech, the history, and the psychology of these machines. There's a lot more in these papers than fits in a single ride. Ride safe, and I'll see you in the next one.