15 Human Brain Facts


The brain is one of the most complex and magnificent organs in the human body. Our brain gives us awareness of ourselves and of our environment. The human brain is the most complex organ in the human body and probably the most complex creation present on this universe. It is evident that, the world’s greatest man made wonders are a result of the human brain making it the most amazing feature in a human being. The human brain with its complexity acts like a storage device which holds safely a person’s most cherished memories. Read 15 brain facts, you may not know before.

  1. Approximately 20% of the blood flowing from the heart is pumped to the brain. The brain needs constant blood flow in order to keep up with the heavy metabolic demands of the neurons.
  2. In general, men’s brains are 10% bigger than women’s, even after taking into account larger body size.
  3. Humans don’t have the biggest brains. That honor belongs to sperm whales with 17-pound brains.
  4. We are not getting smarter. Since the Victorian era, average IQs have gone down 1.6 points per decade for a total of 13.35 points.
  5. Multitasking makes you less productive. When you multitask, your brain simply rapidly toggles back and forth between tasks. This results in decreases in attention span, learning, performance, and short-term memory.
  6. There are 400 miles of blood vessels in the brain.
  7. A study showed that when mothers frequently spoke to their infants, their children learned about 300 more words by age two than did children whose mothers rarely spoke to them.
  8. There is no sense of pain within the brain itself. This fact allows neurosurgeons to probe areas of the brain while the patient is awake.
  9. Our working memory, a very short-term form of memory which stores ideas just long enough for us to understand them, can hold on average a maximum of seven digits. This allows you to look up a phone number and remember it just long enough to dial.
  10. There are one hundred billion neurons in the brain. A stack of one hundred billion pieces of paper would be about 5000 miles high, the distance from San Francisco to London.
  11. Lack of oxygen in the brain for 5 to 10 minutes results in permanent brain damage
  12. There's a virus that attacks human DNA making people less intelligent, impairing brain activity, learning and memory.
  13. Long-term mobile phone use significantly increases the risk of brain tumours, a study found.
  14. It is believed by many that, human beings use less than 10% of their brain. This is a misconception because each and every part of the brain has a known function.
  15. The human brain is regarded as the fattest organ in the human body. About 60% of the human brain is comprised of fat.
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