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Brain Facts

The center of the nervous system that is available in all vertebrate and most invertebrate animals

  • Brain uses 20% of body's energy but makes up only 2% of weight.
  • The Brain uses 20% of the total Oxygen in your body.
  • The cerebral cortex is about as thick as a tongue depressor. It grows thicker as we learn and use it.
  • The brain is about 1300-1400 cubic centimeters in volume, about the size of a cantaloupe and wrinkled like a Walnut.
  • There are 100,000 miles of Blood vessels in the brain.
  • The human brain is the fattest organ in the body and consists of at least 60% Fat.
  • At the time of birth, the brain was almost the same size as an adult brain and contained most of the brain cells for the whole life.
  • The human brain generates 25 watts of power while awake - enough power to illuminate a light bulb.
  • Human brain is composed of 77-78% Water, 10-12% Lipids, 8% Protein, 1% carbs, 2% soluble organics, 1% inorganic Salt.
  • The cerebellum contains half of all the neurons in the brain but comprises only 10% of the brain.
  • The brain can stay alive for 4 to 6 minutes without Oxygen. After that its cells begin die.
  • Brain can work up to 10 seconds before the body falls unconsciousness after the loss of blood supply to it.
  • Humans have the most complex brain of any animal.
  • Five minutes after a dream, half of the dream is forgotten. Ten minutes after a dream, over 90% is forgotten.
  • 30% of 80-year-olds perform as well as young adults.
  • Each year Americans consume 50 billion aspirin tablets or 15.5 million tons.
  • Albert Einstein's brain weighed 1,230 grams (2.71 lbs), significantly less than the human average of 1,300g to 1,400g (3 lbs). His brain is 35% larger in the region related to the responsible for math and spatial perception.
  • Laughing requires 5 areas of brain to function.
  • Harvard maintains a Brain Bank where over 7,000 human brains are store for research purposes.
  • The word "brain" appears 66 times in the plays of William Shakespeare.
  • Reading aloud improves brain development. Hence the practice is followed in schools.
  • The human brain cell can hold 5 times as much information as the Encyclopedia Britannica.
  • The brain itself cannot feel pain.
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