12 Brain Rules That Will Change Your Life (Brain Rules Book Summary by John Medina)

12 Brain Rules That Will Change Your Life (Brain Rules Book Summary by John Medina)

Have you ever wondered how that mind of yours works? It’s a fascinating place up there, full of mystery and potential. Dr. John Medina’s book “Brain Rules” unravels some of this mystery, presenting 12 principles that will alter how you perceive and use your brain. This article will help you understand how your brain works.

The 12 Brain Rules:

  1. Exercise boosts brain power.
  2. The human brain evolved, too.
  3. Every brain is wired differently.
  4. We don’t pay attention to boring things.
  5. Repeat to remember.
  6. Remember to repeat.
  7. Sleep well, think well.
  8. Stressed brains don’t learn the same way.
  9. Stimulate more of the senses.
  10. Vision trumps all other senses.
  11. Male and female brains are different.
  12. We are powerful and natural explorers.

Exercise boosts brain power

It’s not just for sculpting abs or dropping weight – exercise profoundly affects your brain. Get your heart pumping, and your mind’s bound to benefit. Why, you ask? Regular physical activity increases oxygen flow to the brain and releases a medley of beneficial chemicals, bolstering memory and cognitive abilities. So, next time you’re struggling with a tricky problem, try going for a brisk walk. You might return with the solution.

The human brain evolved, too

Our brains aren’t static, and they’ve come a long way since our hunter-gatherer days. Just as our lifestyles have evolved, so too have our brains. They’ve adapted to solve complex problems, not just survival-related ones. They thrive in change and challenge. So, keep your brain sharp by continually learning and adapting. That new coding language or gourmet recipe could be the challenge your brain craves.

Every brain is wired differently

We’re all unique, and that includes our brains. They’re shaped by genetics and life experiences, meaning everyone’s neural wiring differs. This uniqueness is why some folks can easily pick up a musical instrument while others excel at sports. Embrace your brain’s individuality, and nurture your strengths while challenging your weaknesses. It’s what makes you, you.

We don’t pay attention to boring things

Here’s an inconvenient truth – our brains aren’t designed to focus on dull stuff. They crave novelty, complexity, and emotion. Ever found yourself daydreaming during a monotonous lecture? That’s your brain tuning out the dull and seeking stimulation elsewhere. So, make learning or teaching engaging, relatable, and exciting. You or your audience are bound to retain more that way. We ignore boring things, but exciting and interesting things grab and hold our attention.

Repeat to remember

Remember cramming for tests? Repetition is one of the most effective ways to seal information in our memory. The more often we revisit information, the more likely we are to remember it. So, the next time you learn something new, repeat it.

Remember to repeat

But it’s not just about mindless repetition. It’s about strategically timed repetition. This is known as spaced repetition, and it’s about revisiting information at intervals to reinforce our memory. Try breaking it up the next time you study over several days or weeks. You’ll find it sticks better than cramming.

Sleep well, think well

Quality sleep is non-negotiable for a healthy brain. It’s during sleep that our brains consolidate memories and flush out toxins. Lack of sleep can lead to fuzzy thinking, impaired judgment, and sluggishness. So, prioritize a good night’s sleep. Trust me, your brain will thank you.

Stressed brains don’t learn the same way

Stress is a buzzkill for learning. Chronic stress impairs memory and cognitive function, making it harder to learn and remember. Finding healthy ways to manage stress is essential – meditation, exercise, or simply relaxing. Your brain’s learning capacity will thank you.

Stimulate more of the senses

Our brains love multisensory experiences. The more senses involved, the richer the memory. This is why we’re likely to remember the taste of our favorite childhood meal or the smell of a loved one’s perfume. When learning, try to engage as many senses as you can. Read aloud, write notes, and use visual aids. The more senses you involve, the better your learning experience!

Vision trumps all other senses

Ever heard the phrase “a picture is worth a thousand words”? That’s because our brains process visuals faster than text. When you’re trying to learn or remember something, visual aids can be your secret weapon. So, the next time you struggle with a concept, try drawing a diagram or picture. It could make all the difference.

People’s brains are different

This might seem obvious, but it’s worth noting. All people process information differently, and understanding these differences can help improve how we learn and communicate. This doesn’t mean one way of thinking is better – just different. Embrace these differences and use them to your advantage.

We are powerful and natural explorers

From the moment we’re born, we’re explorers. Our brains thrive on novelty and challenge. This innate curiosity doesn’t fade as we age; it takes different forms. Keep this spirit of exploration alive. Learn a new language, travel to a new place, and try a new hobby. Keep exploring, and your brain will remain sharp and agile!

Key Takeaways

  • Get moving to boost your brainpower.
  • Your brain is a product of evolution, so keep it challenged!
  • Embrace the unique wiring of your brain.
  • Keep things interesting to maintain focus.
  • Repetition is vital to remember.
  • Spaced repetition can enhance memory.
  • Quality sleep equals quality thinking.
  • Stress management is essential for learning.
  • Engage multiple senses for a richer learning experience.
  • Use visuals to enhance understanding.
  • Recognize the differences between individual brains.
  • Keep exploring to keep your brain sharp.


Your understanding of how your brain works can revolutionize your life. These 12 brain rules don’t just glimpse your mind’s inner workings; they provide actionable insights you can incorporate into your everyday life. So, put on your explorer’s hat, keep things interesting, get moving, and most importantly, keep learning. It’s your brain we’re talking about – the most powerful tool at your disposal. Let’s make the most of it.

You can check out the complete book: Brain Rules: 12 Principles for Surviving and Thriving at Work, Home, and School here.