Human brain is often called as the CPU of human body. It is one of the most vital organs in human body as it controls the body. Blink of an eye to running away from danger, everything is controlled by the brain. The skull protects the brain from any damage but still there are a lot of facts about human brain which we don’t know about.
Common facts about human brain ->
- Human brain has the capacity to generate approximately 23 watts of power when awake.
- The brain gets only 20% of the total blood and oxygen that is produced in our body.
- The brain is capable of surviving for 5 to 6 minutes only if it doesn’t get oxygen after which it dies.
- Taste receptors are not just located on the tongue, they are also found on human brain.
- Lack of oxygen for 5-10 minutes results in irreversible brain damage.
- A human brain is 75% water and has the consistency of tofu or gelatine
- Your brain can process an image that your eyes have seen for as little as 13 milliseconds less time than it takes for you to blink.
Facts on history of human brains ->
- Ancient people thought that other organs, including the stomach and the heart, were more important than the brain. During the mummification process, for example, the ancient Egyptians would pull out pieces of the brain through the nose with a long iron hook and throw them away. They would, however, keep the stomach, liver, intestines, and heart.
- In South America, scientist have discovered deliberately made “skull holes”. They might have been made to treat painful headaches, brain disease, or to let “evil spirits” out of the head.
- Aristotle (384 BC-322 BC) believed that the centre of thought was the heart and that the brain’s function was merely to cool the heart.
Fun facts about Einstein’s brain-
- While Einstein’s brain weighed 1,230 grams (which is within normal human range) the brain had no parietal operculum in either hemisphere and had an enlarged Sylvan fissure.
- The pathologist who performed Einstein’s autopsy kept the brain in a jar in his basement for 40 years. Eventually, he made a cross-country trip with the brain in a Tupperware container to deliver it to Einstein’s granddaughter.
The Effects of the Modern Lifestyle on the Brain ->
- Technology has forced most of us to be prodigious multi-taskers. But your brain can’t learn or concentrate on two things at once.
- Human brain can quickly toggle back and forth between tasks. But doing so decreases your attention span, ability to learn, short-term memory, and overall mental performance.
- The modern diet is low in omega-3 essential fatty acids. Low levels of omega-3s result in brain shrinkage equivalent to two years of structural brain aging.
- Chronic stress and depression are rampant in modern life. Either can cause measurable brain shrinkage.
- Brain cells cannibalize themselves as a last ditch source of energy to ward off starvation.
- Relying on GPS to navigate destroys your innate sense of direction. When areas of the brain involved in navigation are no longer used, the neural connections fade away via a process known as synaptic pruning.
Male and female human brains ->
- A woman’s brain shrinks during pregnancy and takes up to six months to regain its full size.
- During early pregnancy, approximately 250,000 neurons develop per minute. After birth, a newborn’s brain nearly triples in size in its first year.
- Everyone’s brain starts out as female. The brain of males begins to become masculinised around eight weeks after conception by the male hormone testosterone.
- Research indicates that men and women have different structures and wiring in the brain.
- The frontal lobe – which is responsible for problem solving and decision making, and the limbic cortex which is responsible for regulating emotion, are larger in women.
- Women also have about 10 times more white matter than men.
Human Brain and Memory ->
- The brain in your head isn’t your only brain. There’s a “second brain” in your intestines that contains 100 million neurons.
- Gut bacteria are responsible for making over 30 neurotransmitters including the “happy molecule” serotonin.
- When a person become “black-out” drunk, its not that they are forgetting what happened. Their brain temporarily loses the ability to make new memories.
- Feeling certain doesn’t necessarily rest on facts and reason, but on the brain’s primitive limbic system. In other words, a “gut feeling” can result in careful electric stimulation rather than careful thought.
Some weird facts about human brain ->
- While awake, a human brain can generate enough energy to power a light bulb (between 10-23 watts).
- Eyeballs are a direct physical extension of the brain.
- Deja vu (French for already seen) has never been fully explained. Some scientists believe that a neurological glitch causes an experience to be registered in the memory before reaching consciousness.
- There are more than 100,000 chemical reactions happening in the human brain every second.
- Some scientists believe zombies can be actually created in real life. They think it’s possible that a mutated virus or parasites could attack the brain and rapidly spread throughout large populations, essentially causing a ‘zombie apocalypse’.
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