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BRAINRULES

BY JOHN MEDINA

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Just in case you aren’t motivated to be on top of your game so you can rule the world, how about taking care of your brain so you don’t too soon? As it turns out, exercise isn’t only good for your heart, it’s good for your brain too. Studies have shown that your lifetime risk for both demential and Alzheimer’s are cut in half if you exercise on a regular basis, even in modest amounts. So that’s the first thing you need to know about your brain - it wants you to exercise so that you don’t die.

Back in the day, when we were roaming around the Serengetti and grunting while we were hunting for food, we used to walk an average of 12 miles a day. Which means, our bodies evolved on a heavy diet of exercise. We simply weren’t built to sit in front of a computer at a desk for 8 hours at a time. So what will all this exercise do? It increases the flow of oxygen in our system, which then cleans up toxic chemicals le" behind by food metabolism (can you imagine how hard Kobayashi’s system has to work to clean up 63 hotdogs?). It also stimulates the protein that keeps the neurons connecting. All to say that if your brain stays healthy, YOU stay healthy.

Rule #1 Exercise is good for your brain.

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RULE #1EXERCISE IS GOOD FOR YOUR BRAIN!

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People don’t pay attention to boring things. A shocking discovery, I know. Next you’ll be telling me that people have short attention spans too, won’t you, Captain Obvious? Yes, that is true as well. What’s important here, however, is that the more attention the brain pays to something, the more elaborately the information gets encoded and stored in your memory. Additionally, emotionally arousing events tend to be remembered better than neutral events. This has big implications for those who want to get a message across.

1. Think back to the last time you were in the classroom. Except this time, the teacher didn’t take their lessons from Ben Stein (Beuller, Beuller), they took them from Dr. Medina. Here’s what you’d experience differently:

2. They’d start off with something that causes an emotional reaction related to the topic - for me, the scene at the end of Rudy where gets the call to join the team and sacks the quarterback - that would work.

3. They would the start off with a general overview so you could connect the dots along with way. For evolutionary reasons, you and I don’t tend to fill our brains with detailed minutiae, but generalized pictures of concepts or events. It’s tough to keep somebody’s attention if they don’t know how it relates to the big picture.

4. In each 10 minute section, they would concentrate on a single key point. Why? Because we tend to tune out a"er 10 minutes. That’s when it’s time to check back in and make things interesting again.

5. They wouldn’t let you play on your cell phone or talk to your friends during the presentation. Why? Because you simply can’t do more than one thing at a time, no matter how much you believe you can. In fact, people who are interrupted take 50% longer to complete tasks and make 50% more mistakes while doing it. So, your teacher wasn’t being an egomaniac by forcing you to listen, they were trying to help you learn. Ok, maybe they were trying to be an egomaniac. Whatever.

Rule #4 People don’t pay attention to boring things.

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RULE #4PEOPLE DON’T PAY ATTENTION

TO BORING THINGS!

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Rule #5 - Repeat to Remember. Rule #5 - Repeat to Remember. Rule #5 - Repeat to Remember. Rule #5 - Repeat to Remember. Get it? Ah, I’m funny sometimes. This is an important one. You’re watching this because you want to learn something, right? Well, here are three interesting facts about improving your short-term memory.

First, the human brain can only hold about 7 pieces of information for less than 30 seconds. Essentially, our memories are a little bit stronger than a goldfish. But not much. That first 30 seconds also determines whether or not you’ll remember what you just learned. So, if you want to remember the name of that tall drink of water you just met at the party, you need to keep saying his name. That’s why networking experts will tell you to always use somebody’s name at least 3 times during your initial discussion with them. “Mark, where did you get that lovely howling Wolf shirt, it’s simply delightful”. (Tracy - get a picture of Dwight from The Office in his wolf t-shirt)

Secondly, and puzzlingly, the more elaborate the information you choose to “encode”, the easier it is to remember. For instance, “Mark was wearing a ridiculous howling wolf t-shirt and told me that he still lives at home even though he’s 42 years old.” is better than “Mark, that guy from accounting”. It’s the same idea when you create a sentence to help you remember an acronym, like “Never Eat Shredded Wheat”, which aside from being stunningly good advice, has helped millions of people around the world remember the 4 directions of the compass. It’s more information, but for some reason it’s easier to remember. One of the best ways to elaborately encode something new you’ve learned? Do something with the knowledge - take an action. It will force you to add something memorable to the learning.

Third, you remember the best when you in the same “environment” as you were when you learned the information. So technically, if you are watching this video so that you’ll perform better at work, you’ll want to be watching this at work. Weird, but true. So, once again, do something with the knowledge at work, and do it now. Not next week, because that would be too late.

Rule #5 Repeat to remember for short term memory.

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RULE #5REPEAT TO REMEMBER

FOR SHORT TERM MEMORY!

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Quick - what kind of shirt was Bob wearing? That’s right, that was a trick question, because his name was Mark. Well done, grasshopper. So you’ve remembered that for a good minute or so. But guess what? It takes years to cement a short-term memory into a long-term memory. And the key to doing it is repetition over time with specific timed intervals.

Let’s think back to our school years again. If you were anything like me, you probably crammed for your final exams. This seemed to work quite well, because I got pretty good grades, especially in my math classes, which was my major (BORING). So, I’d take the test, get an A, and feel pretty damn proud of myself for how smart I was. Fast forward a few years and I can’t even add up the my golf score without making a mistake. I guess the joke was on me. You see, I did absolutely nothing to encode it into my memory, and now it’s gone. Just like all those years of French. Gone, toute suite.

How would you incorporate this concept into your learning? Allow for periods of reflection a"er you initially learn the material. For instance, if you and I had studied consistently over the semester, we would have allowed the information to stew around in our brain and start to form a semblance of a memory. We probably should have also been a part of a study group that discussed the material because conversations with others will force us to connect more dots than we otherwise might have.

What would be a really stupid thing to do if you wanted somebody to learn for the long term? Give them an assessment immediately a"er they’ve learned the material - it means absolutely nothing.

Rule #6 Remember to repeat for long-term memory.

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RULE #6REMEMBER TO REPEAT

FOR LONG TERM MEMORY!

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I would rename this rule - get your ass to bed, now! Fascinating fact: when we are sleeping, our brain is not resting at all. In fact, it uses more energy while you are sleeping than it does while you are awake! However, for about a million and one reasons, you need to get your sleep. Think about it - from an evolutionary perspective, sleep puts us in an incredibly vulnerable position - just ask the poor people who find themselves face-to-face with a grizzly bear at the entrance to their tent. Thus, we must be doing something pretty damn important while we are sleeping.

So what happens when we don’t get our sleep? It decreases our ability to pay attention, our working memory, lowers our quantitative skills and logical reasoning, puts us in a terrible mood and even effects our motor skills. In fact, studies have shown that going 21 hours without sleep is the same as being legally drunk. Legally drunk is good for having fun, if that’s your thing, but not so good for learning.

How much sleep do you need? There are no hard and fast rules, but if you wake up feeling like you need more sleep, you probably do. You also could probably use a good cat nap around 3 in the a"ernoon, right at the 12 hour mark from the mid-point of your sleep. If your boss wonders who you’ve put your ear plugs in and have your head planted firmly on your desk, you can regale her with this study: a 26-minute nap was shown to improve NASA pilots’ performance by 34 percent. Sure, your job description probably doesn’t include flying a space shuttle, but it does include using your brain.

Rule #7 Sleep well to think well.

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RULE #7SLEEP WELL TO THINK WELL!

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Apparently, our brain is built to deal with stress that lasts about 30 seconds. Like the stress you feel when faced with a saber-toothed tiger, or coming home a"er work and realizing that you le" the toilet seat up in the morning. The stress response in our body was designed in order to get our muscles moving and get us out of harm’s way. In these types of situations, the brain will actually perform better.

However, our brain isn’t designed to deal with long-term stress where we feel like we have no control over the situation - like dealing with a co-worker who constantly belittles you. In these situations, your brain can actually shrink. Stress on the brain is kind of like George Costanza being “in the pool”. It also damages your memory, weakens your immune system so you get sick more o"en, disrupts your ability to sleep and makes you more susceptible to depression. This kind of stress sucks, big time.

Also, keep in mind that the same brain you use at home is the same brain you use at work. So if your home life stinks, you’re going to perform poorly at work. Conversely, if your work life stinks, you’re home life will suffer the consequences.

The advice? Find ways to get rid of the bad stress. Eliminate it from your life. It’s not good for you.

Rule #8 Stressed brains don’t work the same.

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RULE #8STRESSED BRAINS DON’T WORK THE SAME!

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Yes, stimulation is a good thing. This is how your brain works. We absorb information through our different senses - so when we are meeting Mark for the first time we are seeing his wolf-shirt, hearing the sounds of the music that’s playing (a little GNR if I had anything to do with it), smelling the...I think you get the picture. The brain then takes those signals, disperses them to different parts of the brain, THEN reconstructs the event, eventually perceiving it as a whole. Fascinating stuff.

Remember what we talked about earlier? Of course you do - the more information we encode with the memory, the more we remember the experience. And because our senses are being encoded as separate inputs, this counts as more information.

How much does this impact our ability to retain the memory? This is one of those situations where the whole is greater than the sum of the parts. There is an enormous link between this finding and learning: you’ll have more recall, with better resolution, that lasts longer. The link is evident even 20 years later.

Rule #9 Stimulate more of the senses at the same time.

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RULE #9STIMULATE MORE OF THE SENSES

AT THE SAME TIME!

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Guess what? You are incredible at remembering pictures. So am I. And so are the other 6 billion or so people who share this fine planet with us. Don’t believe me? Here are the cold hard facts. If you hear a piece of information, for instance my description of Mark earlier in the video, 3 days later you’d remember 10% of it. But because we added a picture to the mix, you’re going to remember 65% of that description.

So if pictures truly are worth a thousand words, what kind of things to we pay attention to in those pictures? We pay attention to colour. We pay attention to orientation. We pay LOTS of attention to size. And we pay very special attention to an object in motion.

So the next time you pick up a book, or a pdf, or anything in the written form without supporting visuals that help explain what’s in the words on the page, you’ve been cheated of a true learning opportunity. Oh, and racially diverse stock photography doesn’t count as a visual that aids in understanding. Ok?

That wraps up the summary. Remember, if you want to learn these principles and keep them in your long-term memory, be sure to watch this again, then put it into action, and come back to the summary a few more times in the next few weeks. If you want to catch the Rules that we didn’t have time to get to, we’ll, you’re just going to have to buy the book.

Rule #10 Vision trumps all other senses.

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RULE #10VISION TRUMPS ALL OTHER SENSES!

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