The human brain is approximately 75% water.
your brain uses approximately 20% of the total oxygen pumping around your body!!!
About 750ml of blood pumps through your brain every minute!
Unconsciousness will occur after 8-10 seconds after loss of blood supply to the brain.
All of your "thinking" is done by electricity and chemicals.
When you were born, your brain weighed about 350-400g and you had almost all the brain cells you will ever have. In fact, your brain was closer to its full adult size than any other organ in your body!
Your brain consists of about 100 billion neurons! That's about 166 times the number of people on the planet! It would take you approximately 171 years to count them all!
Human Brain is smaller than an elephant's brain (6000g) but bigger than a monkey's brain (95g)! A dog's brain weighs about 72g and a cat's brain weighs about 30g. Your skin weighs twice as much as your brain!
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