Brain | Amazing Facts

 

Brain Amazing Facts 4u

60 Amazing little known Facts About Brain | Amazing Facts 4U

  1. The nervous system of vertebrates (which includes humans and animals that have backbones and spinal columns) has two parts, the central nervous system (CNS) and the peripheral nervous system (PNS). Humans have the most complex brain of any animal on earth.
  2. The CNS includes the brain, spinal cord and retina of the eyes. The brain is protected by the skull, and the spinal cord by the skeletal vertebrae.
  3. The PNS includes all other nervous system structures that sit outside the CNS but that help connect the CNS to areas of the body.
  4. Human brain is about 1300-1400 cubic centimeters in volume.
  5. The human brain is over 3 times as big as the brain of other mammals that are of similar body size.
  6. The longest living cells in the body are the brain cells which can live for an entire lifetime.
  7. The male brain is on average up to 10% larger than a female’s brain, it has also been proven that female’s brains have more nerve cells and connectors, therefore working more efficiently than men’s. Scientists have discovered that men and women’s brains react differently to pain, which explains why they may perceive or discuss pain differently.
  8. The left side of the brain controls the right side of your body and the right side of your brain controls the left side of your body.
  9. The human brain has 100 billion neurons, making it the most powerful learning tool in the world. Amazingly an octopus brain has about 300 billion neurons with two-thirds of these neurons located in the arms!!
  10. The cerebrum is the largest part of the brain and makes up 85% of the brain’s weight. The total surface area of the cerebral cortex is about 25000 sq. cm.
  11. In fact, your skin weighs twice as much as your brain.
  12. The white matter is made up of dendrites and axons, which create the network by which neurons send their signals. The brain’s Gray matter is made up of neurons, which gather and transmit signals. Your brain is 60% white matter and 40% gray matter.
  13. The brain is made up of about 75% water. It takes only 2% dehydration to affect your attention, memory and other cognitive skills.
  14. Amazing fact is that brain has no pain receptors or pain fibers and the brain itself can’t feel pain. The brain surgery can be done with patient awake since brain has no nerve fibers for pain. You feel headaches because the skull is surrounded by what’s called meninges or blood vessels which do have pain receptors.
  15. A living brain is so soft you could cut it with a butter knife.
  16. 90 minutes of sweating can temporarily shrink the brain as much as one year of aging.
  17. 25% of the body’s cholesterol resides within the brain. Cholesterol is an integral part of every brain cell. Without adequate cholesterol, brain cells die.
  18. While an elephant’s brain is physically larger than a human brain, the human brain is 2% of total body weight compared to just 0.15% of an elephant’s brain, meaning humans have the largest brain to body size.
  19. Each single brain neuron has from 1,000 to 10,000 connections with other neurons, making up to 10 trillion neuron connections possible.
  20. Amazingly the diameter of an individual brain neuron is 4 microns, meaning 30,000 could fit on the head of a pin.
  21. All brain cells are not alike. There are as many as 10,000 specific types of neurons in the brain.
  22. Human brain can store 5 times as much information as the Encyclopedia Britannica. Storage capacity of the brain in electronic terms is 3 to 1,000 terabytes (1 terabyte= 1000 gigabytes).
  23. Human brain is the most powerful computer which has the processing speed of 3000+ Ghz.
  24. The brain is much more active at night than during the day.
  25. It’s absolutely amazing to know that there are 400 miles of blood vessels in the brain.
  26. Each time you have a new thought or memory, a new brain connection is made between two or more brain cells.
  27. The same part of the brain interprets both your physical and emotional pain.
  28. It was believed that only 4% of the brains cells work and the remaining cells are kept in reserve but recent research reveals that most of the brain works.
  29. Human babies are born 2 months prematurely for our size and lifespan to accommodate proportionately large brain during birth.The birth-to-three-month period is the fastest rate of brain development in human life span.
  30. 60% of all the energy a baby expends is concentrated in the brain.
  31. In baby’s first year, his brain will double to become half its final size. A 2-year-old’s brain is 80% of adult size. Your brain reaches full maturity by the age 25.
  32. While awake, your brain generates between 10 and 25 watts of power or enough energy to power a light bulb.
  33. A newborn baby sees World upside down for some time before the brain matures to correct it.
  34. The average number of thoughts that humans are believed to experience each day is 70,000.
  35. More than 100,000 chemicals reactions take place in your brain every second.
  36. Every time you recall a memory or have a new thought, you are creating a new connection in your brain. Memory is formed by associations, so if you want help remembering things, create associations.
  37. The human brain is the fattest organ in the body and may consists of at least 60% fat.
  38. Although brain makes up just 2% of the body’s weight, it uses around 20% of its energy.
  39. Amazingly 25% of the human brain is used to control the eyes.
  40. Reading aloud and talking often to a young child promotes brain development.
  41. The cerebral cortex grows thicker as you learn to use it.
  42. We think we are in control of our but the fact is that 95% of our decisions take place in our subconscious mind.
  43. The capacity for such emotions as joy, happiness, fear, and shyness are already developed at birth but the type of nurturing a child shapes these emotions.
  44. Laughing at a joke is no simple task as it requires activity in five different areas of the brain.
  45. The first sense to develop while in utero is the sense of touch. The lips and cheeks can experience touch at about 8 weeks and the rest of the body around 12 weeks.
  46. It is not possible to tickle yourself. The cerebellum, a part of the brain, warns the rest of the brain that you are about to tickle yourself. Since your brain knows this, it ignores the resulting sensation.
  47. Without any words, you may be able to determine if someone is in a good mood, is feeling sad, or is angry just by reading the face. The area in brain responsible for this recognition is called the amygdala.
  48. If your brain loses blood for 8 to 10 seconds, you will lose consciousness. No oxygen for 5 to 10 minutes will result in permanent brain damage.
  49. Information can be processed by the brain nerves as slowly as 0.5 meters/sec or as fast as 120 meters/sec.
  50. For years, medical professionals believed that tinnitus, the constant sound in the ear was due to a function within the mechanics of the ear, but newer evidence shows that it is actually a function of the brain.
  51. Amazing fact is that each time we blink, our brain plays its role keeping things illuminated so the whole world doesn’t go dark each time we blink (about 20,000 times a day).
  52. Harvard maintains a Brain Bank where over 7,000 human brains are in store for research purposes.
  53. Music lessons have shown to considerably boost brain organization and ability in both children and adults.
  54. Einstein’s brain was similar in size to other humans except in the region that is responsible for math and spatial perception. In that region, his brain was 35% wider than average.
  55. The story of Albert Einstein’s brain is weird. The pathologist who performed Einstein’s autopsy kept the brain in a jar in his basement for 40 years without anybody’s knowledge. Eventually he handed it over to Einstein’s granddaughter.
  56. London taxi drivers famous for knowing all the London streets by heart, have a larger than normal hippocampus. The study suggests that as people memorize more and more information, this part of their brain continues to grow.
  57. After the age of 35, human brain will start losing about 7,000 brain cells a day. The cells will never be replaced.
  58. Amazing thing is that the brain in our head isn’t our only brain. There’s a “second brain” in our intestines that contain 100,000 neurons. Gut bacteria are responsible for making over 30 neurotransmitters including the “happy molecule” serotonin.
  59. Sometimes half a brain is a good as a whole one. When surgeons perform a hemispherectomy, they remove or disable half of the brain as a surgical treatment. Amazingly patients may not experience any effect on personality or memory.
  60. A blood-brain barrier protects your brain from foreign substances. But it works differently for different products. E.g. The nicotine in smoke rushes into the brain in a mere 7 seconds but alcohol, on the other hand, takes about 6 minutes.

By Amazing Facts 4U Team

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