According to Science, This Are the 100 Fascinating Facts about the Human Brain!

According to Science, This Are the 100 Fascinating Facts about the Human Brain!

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Here we are going to present you some brain facts which dispel several brain myths which exist, based on outdated knowledge. Below, you can learn how the human brain is working, for better or worse.

All of the 100 facts cite original references.

  1. The typical brain comprises about 2% of the total weight of our body, but it uses about 20% of its total energy, as well as oxygen intake.
  2. The human brain is 73% water. It just takes 2% dehydration to affect our attention, as well as memory and other cognitive skills.
  3. 90 minutes of sweating can temporarily shrink your brain as much as one year of aging.
  4. The brain weighs about three pounds. 60% of the dry weight is fat, something which makes the brain the fattiest organ in your body.
  5. 25% of our cholesterol in the body resides within your brain. Cholesterol is an integral part of each brain cell. Without adequate cholesterol, the brain cells die.
  6. Nobody can tell for sure, but according to the latest estimate, your brain contains roughly 86 billion brain cells.
  7. Every neuron can transmit a thousand nerve impulses per second. It can make tens of thousands of synaptic contacts with other neurons.
  8. A piece of brain tissue which has the size of a grain of sand contains about 100,000 neurons, as well as 1 billion synapses, all of them communicating with each other.
  9. All of our brain cells are not alike. There are about 10,000 types of neurons in your brain.
  10. Our brain also needs regular stores of oxygen. Just five minutes without oxygen can lead to the death of some brain cells, causing severe brain damage.
  11. Babies have big heads to hold rapidly growing brains. The brain of a two-year-old is 80% of adult size.
  12. As any parent can attest, the brains of teenagers are not fully formed. It is not until around the age of 25 that the brain reaches full maturity.
  13. Brain information travels up to an astonishing 268 miles per hour. That is faster than Formula 1 race cars which top out at 240 mph.
  14. Your brain generates approximately 12-25 watts of electricity. That is enough to power a low-wattage LED light.
  15. There is also a reason why the brain has been named “random thought generator”. The average brain is considered to generate up to 50,000 thoughts a day.
  16. Every minute, 750-1,000 milliliters of blood flow through the brain. That is enough to fill a bottle of wine or liter bottle of soda.
  17. Our brains can process a picture which our eyes have seen for as little as thirteen milliseconds – less time than it takes us to blink.
  18. In general, the brains of men are 10% bigger than women’s, even after considering larger body size. Nevertheless, the hippocampus, the part of the brain which to which it is most strongly connected to the human memory, it is typically larger in women.
  19. Albert Einstein’s brain weighed 2.71 pounds (1,230 grams) – 10% smaller than the average which is three pounds (1,400 grams). Nevertheless, the neuron density of his brain was higher than average.
  20. Neanderthal brains were 10% larger than our Homo sapiens brains.
  21. While humans have the biggest brains proportional to the body weight of all of the animals, we do not have the biggest brains. This distinction also belongs to the sperm whales with seventeen-pound brains.
  22. Human brains have got reasonably smaller over the past 10-20,000 years. This lost volume equals the size of a tennis ball.
  23. The hippocampus, which is the part of the brain that is considered the “memory center,” is reasonably larger in London cab drivers. That is because of the mental workout they get while they navigate the 25,000 streets of London.
  24. Chronic stress and depression are rampant in modern life. Either can lead to measurable brain shrinkage.
  25. The contemporary diet is low in omega-3 essential fatty acids. Low levels of omega-3s result in brain decrease that is equivalent to 2 years of structural brain aging.
  26. Since the Victorian era, average IQs have decreased 1.6 points per decade for a total of 13.35 points.
  27. Technology has forced a lot of people to become prodigious multitaskers. But, our brains cannot learn or concentrate on many things at once. What it can do is swiftly toggle back and forth between the tasks. By doing so, our attention span, as well as our ability to learn, our short-term memory and our overall mental performance decreases.
  28. Unexpectedly, millennials, the ones aged from 18 to 34, are in turn more forgetful than those that are baby boomers. They are more likely to forget the day that the day it is or where they have put their keys than their parents are.
  29. Attention spans can also become shorter. In 2000, the average attention span was twelve seconds. Now, it is eight seconds. This is shorter than the nine-second attention span of the average goldfish.
  30. Brain cells cannibalize themselves as a last-ditch source of energy to ward off starvation. Because of that, in very real ways, dieting, particularly low-fat diets, can force out brains to eat itself.
  31. More than 140 proteins in our brains are negatively affected by exposure to electromagnetic frequencies, the kind which is emitted by our cell phone, as well as several other electronic devices.
  32. Relying on GPS to navigate can sometimes destroy our natural sense of direction, a skill which took our forefathers thousands of years to develop, as well as hone. When the areas of the brain involved in navigation are no longer used, these neural connections fade away through a process which is known as synaptic pruning.
  33. The popular myth which we only use 10% of our brains is flat-out wrong. Brain scans demonstrate that we use the most of our brains most of the time, even when we sleep.
  34. There is nothing like a left-brain or right-brain personality or skill type. We are not left or right-brained but we are “whole-brained”.
  35. Instead of what you have been told, alcohol does not kill brain cells. What excessive alcohol consumption can do is damage the connective tissue at the end of neurons.
  36. The effect known as “Mozart effect” has been debunked. While we listen to certain kinds of music which can improve memory and concentration, there is nothing unique about listening to Mozart.
  37. You may also have heard that we have got more brain cells than there are stars in the Milky Way. However, this is not true. The best-guess estimates are that we have 86 a billion neurons while there are 200 to 400 billion stars in the Milky Way.
  38. It is frequently said that there are about 10,000 miles of blood vessels in the brain when that number is closer to 400 miles. Still, it is a substantial amount.
  39. Opposite of the prevailing medical claim, having high total cholesterol is not bad for your brain. In fact, high cholesterol lowers the risk of dementia.
  40. Until lately, there was a “fact” that we were born with a set level of intelligence and a certain number of brain cells. But, it has since been found that our brain can also change throughout our lifetime, as of a property which is known as brain plasticity. Our brains can also contribute to forming new cells through a process that is known as neurogenesis.
  41. Memory is a better idea of as an activity instead of being linked to some specific area of our brains. Any given memory is deconstructed, as well as distributed in different parts of our brains. Then, for the memory to be revived, it can also get reconstructed from the individual fragments.
  42. Your brain starts to slow down at the ripe old age of 24. But, peaks for different cognitive skills at different ages. Actually, at any given age, you are likely to be getting better at some things and worse at others. An extreme case is vocabulary skill which may peak as late as the early 70s.
  43. If you were drinking alcohol and did not remember what you did last night, it is not because you forgot. While we are drunk, our brain is incapable of forming memories.
  44. It is thought that people with exceptional memory are born that way, even though that is rarely the case. Most of the memory matters are going to say that having an outstanding memory is a skill that they managed to develop by employing the best memory techniques.
  45. Human brain tissue is not dense. It is very fragile, as well as soft and squishy, similar to tofu’s or gelatin’s consistency.
  46. Your brain also produces half a cup of fluid daily. It floats in this bath of cerebrospinal fluid which also acts as a shocker absorber to maintain the brain from being crushed by its weight.
  47. Sometimes, half a brain is good as a whole one. When surgeons operate to stop seizures, they also remove or disable half of the brain in a procedure that is known as a hemispherectomy. Shockingly, patients also experience no effect on personality or memory.
  48. Our brain has a connectivity pattern as unique as our fingerprints.
  49. Although pain is processed in our brains, our brains have no pain receptors and therefore, they do not feel pain. This explains how a brain surgery can be performed while the patient is awake with no pain or discomfort. Headache pain feels like it starts in the brain, but it is actually caused by sensations from the nearby skin, joints, sinuses, as well as blood vessels or muscles.
  50. Brain freeze sure feels like pain in your brain, but that is just an example of referred pain that emanates from the root of the mouth. Fortunately, brain freeze does not freeze brain, as frozen brain cells rupture and turn to mush.
  51. The brains of an introvert and an extrovert are measurably different. MRIs show that the dopamine reward network is more active in the brain of an extrovert while the brain of an introvert has more gray matter.
  52. One research which has been conducted at Cambridge University showed that the order of letters in a word does not matter much to our brain. As long as the first, as well as the last letters are in the right spot, our brain can rearrange the letters to form words as fast as we can read. That is why we can easily make sense out of the following jumble of letters:

 

Aoccdrnig to a rscheearch at Cmabrigde Uinervtisy, it deosn’t mttaer in waht oredr the ltteers in a wrod are, the olny iprmoetnt tihng is taht the frist and lsat ltteer be at the rghit pclae. The rset can be a toatl mses and you can sitll raed it wouthit a porbelm. Tihs is bcuseae the huamn mnid deos not raed ervey lteter by istlef, but the wrod as a wlohe.

 

  1. The storage capacity of our brain is considered virtually unlimited. It does not get “used up” like RAM in your computer.
  2. The latest research has demonstrated that the memory capacity of our brain is a quadrillion, or 1015, bytes. Incredibly, that is about the same amount that is needed to store the entire internet.
  3. Our brain is also capable of 1,016 processes per second; that makes it far more powerful than any existing computer.
  4. Some researchers that were involved in the AI Impacts project have discovered a way to compare supercomputers to brains: they also measure how fast a computer can move information around its system. By this standard, the human brain is also 30 times more powerful than the IBM Sequoia, which is one of the fastest supercomputers in the world.
  5. The K computer of Japan is among the most powerful computers around the world. when programmed to simulate human brain activity, it can take forty minutes to crunch the data equivalent to only one second of the brain activity.
  6. There are around 200 known cognitive biases and distortions that can cause us to think and act irrationally.
  7. Memories are surprisingly unreliable, and they change over time. Emotions, as well as motivation, context, cues, and frequency of use, can all affect how accurately we remember something. That also includes “flashbulb memories” which happen during traumatic events.
  8. Of the thousands of thoughts, someone has every day; it is estimated that about 70% of this mental chatter is negative, as well as self-critical, pessimistic and fearful.
  9. You also think that you are in control of your life? Do not be so sure. About 95% of your decisions take place in your subconscious mind.
  10. A blood-brain barrier protects our brain by preventing a lot of foreign substances in our vascular system from reaching our brain. But, the barrier does not work perfectly, and a lot of substances sneak through. Nicotine rushes into the brain in a mere seven seconds. On the other hand, alcohol takes six minutes.
  11. Your brain craves mental stimulation, sometimes to a fault. Men specifically would give themselves electric shocks instead of sitting quietly in a room, as well as think.
  12. Synesthesia is a condition where the stimulation of one sense automatically evokes a perception of another sense. Those people with synesthesia may “taste” words, as well as “smell” sounds, or see numbers as colors. While it is not known exactly why that happens, the prevailing theory is that those brains have hyper-connectivity between their sensory areas which are in their brain.
  13. The human brain is exceptionally complex, and it consequently can go awry in some astonishing ways. Some of the oddest disorders include exploding head syndrome disorder, Capgras syndrome, which is thinking our loved ones have been substituted by robots, impostors, or aliens, and Cotard’s syndrome, which is our believing we are dead.
  14. Savant syndrome is a condition in which those people that have severe mental handicaps have an “island of genius.” The most popular areas of genius fall into one of these categories are music, art, mathematics, medicinal or spatial skills.
  15. Most of the savants are born this way, but a brain trauma can lead to an acquired savant syndrome where ordinary individuals suddenly develop genius-level abilities that they did not have before.
  16. Brain cells need some constant supply of fuel to stay alive, but they cannot store energy. Luckily, there is also a backup system. Your liver will break down stored fat so it will produce ketone bodies which can be used as substitute fuel when commonly-used blood glucose is not available.
  17. Our brain in our head is not our only brain. There is a “second brain” in your intestines that contains 100 million neurons. Gut bacteria are responsible for making more than 30 neurotransmitters which include the “happy molecule” serotonin.
  18. Some scientists claim that zombies can be created. They also believe that it is possible that a mutated virus or parasites could attack the human brain and rapidly spread throughout large populations, essentially leading to a “zombie apocalypse.”
  19. It is not our imagination. The users of Apple devices are different than those that use Android products. MRIs show that Apple products stimulate the “god spot” in the brains of their users – the same part of our brains activated by religious imagery in people of faith.
  20. There are a few facts about the brain that are as strange as the posthumous story of Albert Einstein’s brain. The pathologists that performed the autopsy of Einstein kept the brain in a jar in his basement for about 40 years. It has been said that he made a cross-country trip with the brain in a Tupperware container to deliver it to the granddaughter of Einstein. You can read the full story about one of the most bizarre road trips ever in Driving Mr. Albert: A Trip Across America with Einstein’s Brain.
  21. Lack of oxygen in our brain for 5 to 10 minutes results in permanent brain damage.
  22. Our brain keeps developing until our 40s.
  23. New brain connectors are created whenever we form a memory.
  24. Our brain uses 20% of the total oxygen and blood in our body.
  25. There is a virus which attacks the human DNA and makes people less intelligent, impairing brain activity, as well as learning and memory.
  26. When we are awake, our brain produces enough electricity to power a small light bulb.
  27. Violent homes also have the same effect on the brains of kids as combat on soldiers.
  28. According to science, even just a small dose of power changes how your brain operates and diminishes empathy.
  29. You have taste receptors in your stomach, as well as intestines, pancreas, lungs, anus, testicles and your brain.
  30. Half of our genes describe the complex design of our brain, with the other half illustrating the organization of the other 98% of our body.
  31. The human brain also has the same consistency as tofu.
  32. The smell of chocolate can also increase theta brain waves which trigger relaxation.
  33. The brain releases so much dopamine in our organism which a brain scan resembles that of a person on heroin.
  34. Forgetting is good for our brain: deleting unnecessary information also helps our nervous system retain its plasticity.
  35. The brain of a baby can use up to 50% of the total glucose supply that might help explain why babies need so much sleep.
  36. “Sphenopalatine ganglioneuralgia” is the scientific term for brain freeze.
  37. In 2015, the fourth most powerful supercomputer in the world took about forty minutes to simulate only one second of human brain activity.
  38. Using mobile phones for a longer period will significantly raise the risk of brain tumors, according to one study.
  39. Sleep deprivation also affects our brain in multiple ways which can impair judgment and slow reaction.
  40. According to scientists, the brain also treats rejection as physical pain.
  41. It only takes six minutes for brain cells to react to alcohol.
  42. When you learn something new, the structure of your brain changes.
  43. On average, male brains have a total volume which is between 8 and 13% larger than that of females.
  44. By 2013, the average US$1,000 laptop is going to be just as fast as the human brain, according to Ray Kurzweil.
  45. Music has the potential to trigger activity in the same brain structure which releases the “pleasure chemical” dopamine during sex and eating as well.
  46. There are virtually no differences in the brain anatomy between those people that have autism and those that do not have.
  47. The feeling of certainty can also be triggered without the need for facts or reasoning, using electric stimulation over a specific part of our brain.
  48. We have more brain cells as a newborn baby than we are ever going to have again in our life.

 

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