The human brain is extraordinary. It is the body’s control centre. We must know how neurons work, how the brain develops, how it controls movement and perceives the senses, what happens during sleep, and how language, learning, and memory are developed. Technology is finally unlocking the secrets of the brain. It is explaining why we behave the way we do. It is helping experts develop new methods and machines to boost our brain power and it is revealing the unique capabilities we all have inside our heads.The human brain is the command centre for the human nervous system. It receives signals from the body's sensory organs and outputs information to the muscles. The human brain has the same basic structure as other mammal brains but is larger in relation to body size than any other brains.There are about 100 billion tiny cells in your brain called ‘neurons’. There are so many that it would take you over 3,000 years to count them all. Around 77% of your brain is just water and it stops growing when you are around 25, but that doesn’t mean that you have reached your intellectual peak. The adult human brain weighs about 3 pounds (1,350g). It is about 2% of the total body weight and it is the last part of your body to die.Lively and information-packed, ‘51 Must Know Facts about Brain’ is a must read for you to know each and every important fact about the brain.