SCIENCE FACTS – Amazing Facts About The Human Brain

The human brain is a wonderful organ. It
starts to work as soon as you are born and doesn’t stop until you get up to deliver a speech.

See science facts about human brains which I’m certainly sure you know not that’s why you want to read this now.
Take some of your time to go through this post as I’m definitely convinced that you must enjoy it.

Brain Fact - Timeleswap
The human brain. Credit:

See our previous post on Science facts about the human eye

SCIENCE FACTS : Fun Brain Human Facts

    The human brain is a funny thing: it’s very susceptible to tempo and melody. You put the right words to it, and it becomes very influential.

  • Humor is by far the most significant activity of the human brain.
  • What constrains or enables the capacity of human beings to work in groups is not so much the technology, but rather the capacity of the human brain to have and monitor social interactions.
  • Lack of oxygen in the brain for 5 to 10 minutes results in permanent brain damage
  • The typical brain is about 2% of a body’s weight but uses 20% of its total energy and oxygen intake.
  • Your brain is 73% water. It takes only 2% dehydration to affect your attention, memory and other cognitive skills.
  • Ninety minutes of sweating can temporarily shrink the brain as much as one year of aging.
  • Your brain weighs about 3 pounds. Of that, the dry weight is 60% fat, making your brain the fattiest organ.
  • No one knows for sure, but the latest estimate is that our brains contain roughly 86 billion brain cells.
  • Each neuron connects with, on average, 40,000 synapses.
  • A piece of brain tissue the size of a grain of sand contains 100,000 neurons and 1 billion synapses all communicating with
    each other.
  • A piece of brain tissue the size of a grain of sand contains 100,000 neurons and 1 billion synapses all communicating with each other.
  • 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.


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  • The weight of the human brain is about 3 lbs.
  • The cerebrum is the largest part of the brain and makes up 85% of the brain’s weight.
  • Your skin weighs twice as much as your brain.
  • The brain’s gray matter is made up of neurons, which gather and transmit signals.
  • The white matter is made up of dendrites and axons, which create the network by which neurons send their signals.
  • Your brain is 60% white matter and 40% gray matter.
  • The brain is made up of about 75% water.
  • Your brain consists of about 100 billion neurons.

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  • There are no pain receptors in the brain, so the brain can feel no pain.
  • While an elephant’s brain is physically larger than a human brain, the human brain is 2% of total body weight (compared to 0.15% of an elephant’s brain ), meaning humans have the largest brain to body size.
  • There are 100,000 miles of blood vessels in the brain.
  • The human brain is the fattest organ in the body and may consists of at least 60% fat . The Developing Brain Starting from within the womb, fetal brain development begins the amazing journey that leads to a well-developed brain at birth that continues to grow for 18 more years.
  • Neurons develop at the rate of 250,000 neurons per minute during early pregnancy.
  • At birth, your brain was almost the same size as an adult brain and contained most of the brain cells for your whole life.
  • A newborn baby’s brain grows about three times its size in the first year.
  • Your brain stopped growing at age 18.
  • The cerebral cortex grows thicker as you learn to use it.
  • Humans continue to make new neurons throughout life in response to mental activity.
  • Reading aloud and talking often to a young child promotes brain development.
  • The capacity for such emotions as joy, happiness, fear, and shyness are already developed at birth. The specific type of nurturing a child receives shapes how these emotions are developed.
  • 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.
  • Children who learn two languages before the age of five alters the brain structure and adults have a much denser gray matter.
  • Studies have shown that child abuse can inhibit development of the brain and can permanently affect brain development. Brain Function From the invisible workings of the brain to more visible responses such as yawns or intelligence, find out how the brain functions with these facts.
  • Your brain uses 20% of the total oxygen in your body.
  • As with oxygen, your brain uses 20% of the blood circulating in your body.
  • If your brain loses blood for 8 to 10 seconds, you will lose consciousness.
  • Information can be processed as slowly as 0.5 meters/sec or as fast as 120 meters/ sec (about 268 miles/hr).
  • While awake, your brain generates between 10 and 23 watts of power–or enough energy to power a light bulb.

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