It weighs about three pounds—roughly the same as a medium-sized bag of apples—and has the texture of firm jelly or cold tofu. It doesn't look like much, but this small organ is responsible for every thought you've ever had, every dream you've ever chased, and every person you've ever loved. It manages your heartbeat while you sleep, allows you to recognize a friend's face in a crowded room, and lets you imagine worlds that don't even exist.  The Ultimate Upgrade : For millions of years, nature has been "e;upgrading"e; the brain. We started with simple nerves that could only sense light and dark. Over time, evolution added layers for survival, layers for emotion, and finally, the massive "e;thinking"e; layer that makes us human. But here is the most exciting part: The story of the brain isn't over. While animals are mostly stuck with the brains they were born with, your brain is a "e;living sculpture."e; It is constantly changing and rewiring itself based on what you do, what you learn, and even what you eat. You are the architect of your own mind. What This Book Is About In the chapters ahead, we are going to take a journey through time and biology.  We will explore: The Ancient Past: How your "e;Lizard Brain"e; still tries to protect you today.  The Social Superpower: Why humans are the only species that can cooperate in groups of millions. The Biological Engine: How your neurons use electricity and chemicals to create "e;You."e; The High-Tech Future: How we might soon use technology to "e;download"e; skills or link our minds together. Whether you want to understand why you get "e;hangry,"e; why teenagers take more risks, or how we might one day communicate via digital telepathy, this book is your guide.  By the time you finish the last page, you won't just know about your brain—you'll know how to use it to its full potential.

It weighs about three pounds—roughly the same as a medium-sized bag of apples—and has the texture of firm jelly or cold tofu. It doesn't look like much, but this small organ is responsible for every thought you've ever had, every dream you've ever chased, and every person you've ever loved. It manages your heartbeat while you sleep, allows you to recognize a friend's face in a crowded room, and lets you imagine worlds that don't even exist.  The Ultimate Upgrade : For millions of years, nature has been "e;upgrading"e; the brain. We started with simple nerves that could only sense light and dark. Over time, evolution added layers for survival, layers for emotion, and finally, the massive "e;thinking"e; layer that makes us human. But here is the most exciting part: The story of the brain isn't over. While animals are mostly stuck with the brains they were born with, your brain is a "e;living sculpture."e; It is constantly changing and rewiring itself based on what you do, what you learn, and even what you eat. You are the architect of your own mind. What This Book Is About In the chapters ahead, we are going to take a journey through time and biology.  We will explore: The Ancient Past: How your "e;Lizard Brain"e; still tries to protect you today.  The Social Superpower: Why humans are the only species that can cooperate in groups of millions. The Biological Engine: How your neurons use electricity and chemicals to create "e;You."e; The High-Tech Future: How we might soon use technology to "e;download"e; skills or link our minds together. Whether you want to understand why you get "e;hangry,"e; why teenagers take more risks, or how we might one day communicate via digital telepathy, this book is your guide.  By the time you finish the last page, you won't just know about your brain—you'll know how to use it to its full potential.

It weighs about three pounds—roughly the same as a medium-sized bag of apples—and has the texture of firm jelly or cold tofu. It doesn't look like much, but this small organ is responsible for every thought you've ever had, every dream you've ever chased, and every person you've ever loved. It manages your heartbeat while you sleep, allows you to recognize a friend's face in a crowded room, and lets you imagine worlds that don't even exist.  The Ultimate Upgrade : For millions of years, nature has been "e;upgrading"e; the brain. We started with simple nerves that could only sense light and dark. Over time, evolution added layers for survival, layers for emotion, and finally, the massive "e;thinking"e; layer that makes us human. But here is the most exciting part: The story of the brain isn't over. While animals are mostly stuck with the brains they were born with, your brain is a "e;living sculpture."e; It is constantly changing and rewiring itself based on what you do, what you learn, and even what you eat. You are the architect of your own mind. What This Book Is About In the chapters ahead, we are going to take a journey through time and biology.  We will explore: The Ancient Past: How your "e;Lizard Brain"e; still tries to protect you today.  The Social Superpower: Why humans are the only species that can cooperate in groups of millions. The Biological Engine: How your neurons use electricity and chemicals to create "e;You."e; The High-Tech Future: How we might soon use technology to "e;download"e; skills or link our minds together. Whether you want to understand why you get "e;hangry,"e; why teenagers take more risks, or how we might one day communicate via digital telepathy, this book is your guide.  By the time you finish the last page, you won't just know about your brain—you'll know how to use it to its full potential.