What's the brain made of? At what age human brain starts to shrink? How much oxygen brain needs? How many neurons does a brain have? What's the weight of our Brain?
These are the most amazing Fun and interesting facts about our brain we didn't know :
Let's Find out Now!
2. Over 80% of the brain is water.
As such, even slight dehydration can cause fatigue, headaches, lack of mental clarity, stress and sleep issues. So, with 80% of our brain being made with water, it is only obvious that we need to keep ourselves hydrated.
3. After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year. Albert Einstein's brain weighed 1,230 grams (2.71 lbs), significantly less than the human average of 1,300g to 1,400g (3 lbs).
4. Sphenopalatine ganglioneuralgia is the scientific term for brain freeze.
"Sphenopalatine ganglioneuralgia" is the complicated medical term for what most of us call an "ice cream headache" or "brain freeze." These more easily understandable terms describe what happens when a low-temperature food, such as ice cream, makes contact with the hard palate, causing a transient but painful headache.
5. The brain requires 25 percent of all oxygen used by the body.
As little as five minutes without oxygen can cause some brain cells to die, leading to severe brain damage. Also, the harder you think, the more oxygen and fuel your brain will use from your blood – up to 50%.
6. While awake, your brain generates between 10 and 23 watts of power–or enough energy to power a light bulb.
It is TRUE. Our 100 billion microscopic brain cells, called neurons, produce enough electrical signals to power a small light bulb.
7. Your brain stopped growing at age 18?
Your brain changes a lot between birth and adolescence. It grows in overall size, modifies the number of cells contained within, and transforms the degree of connectivity. The changes don't stop once you turn 18. In fact, scientists now think your brain continues maturing and fine-tuning itself well into your 20s.
8. If your brain loses blood for 8 to 10 seconds, you will lose consciousness.
Bleeding between the brain tissue and skull or within the brain tissue itself – can cause brain damage and be life-threatening. Some symptoms include headache; nausea and vomiting; or sudden tingling, weakness, numbness or paralysis of face, arm or leg.
9. Your brain is more active when you sleep.
Sleep is important to a number of brain functions, including how nerve cells (neurons) communicate with each other. In fact, your brain and body stay remarkably active while you sleep. Recent findings suggest that sleep plays a housekeeping role that removes toxins in your brain that build up while you are awake.
10. The brain can live for 4 minutes without oxygen.
Time is very important when an unconscious person is not breathing. Permanent brain damage begins after only 4 minutes without oxygen, and death can occur as soon as 4 to 6 minutes later.
11. The adult human brain weighs about 3 pounds (1,300-1,400 g).
In terms of weight, the average adult human brain weighs in at 1300 to 1400 grams or around 3 pounds.In terms of length, the average brain is around 15 centimeters long.For comparison, a newborn human baby's brain weighs approximately 350 to 400 grams or three-quarters of a pound.Men tend to have bigger brains than women.
12. Forgetting is good for the brain: deleting unnecessary information helps the nervous system retain its plasticity.
Scientists have now discovered a molecular mechanism that actively regulates the process of forgetting. In order to function properly, the human brain requires the ability not only to store but also to forget: Through memory loss, unnecessary information is deleted and the nervous system retains its plasticity.
13. The smell of chocolate increases the brain waves, which triggers relaxation.
Endorphins interact with the receptors in our brain that reduce the perception of pain, and can help trigger a positive feeling in the body. ... Researchers have found that cocoa, the main ingredient in chocolate, causes the brain to release these ”feel good” chemicals.
14. Did you know when recognising a persons face you use the right side of your brain.
The right side of the brain helps people recognize themselves in a picture, say researchers at Beth Israel Deaconess Medical Center in Boston. The study joins a growing body of evidence that demonstrates the right hemisphere plays an important role in self-awareness, which scientists believe is one aspect of human consciousness.
15. The left side of your brain controls the right side of your body and vice versa.
The brain is divided into symmetrical left and right hemispheres. Each hemisphere is in charge of the opposite side of the body, so your right brain controls your left hand. The right hemisphere also takes in sensory input from your left side and vice versa.
16. A newborn baby’s brain grows about three times its size in the first year.
Between conception and age three, a child's brain undergoes an impressive amount of change. At birth, it already has about all of the neurons it will ever have. It doubles in size in the first year, and by age three it has reached 80 percent of its adult volume.
17. The human brain is composed of about 100 billion cells.
Human brain contains about 170.68 billion cells, 86.1 billion of which are neurons and 84.6 billion of which are glial cells.
18. Your brain can store everything:
Over the long term, memories are encoded in neural patterns---circuits of connected neurons. And your brain's ability to knit together new patterns is limitless, so theoretically the number of memories stored in those patterns is limitless as well.
Technically, your brain has the capacity to store everything you experience, see, read or hear. However, the real issue is recall whether you can access that information.
19. It only takes 6 minutes for brain cells to react to alcohol.
Only six minutes after consuming an amount of alcohol equivalent to three glasses of beer or two glasses of wine, leading to a blood alcohol level of 0.05 to 0.06 percent, changes have already taken place in the brain cells, as the scientists have now shown using magnetic resonance spectroscopy.
20. Brain damage occurs at an internal temperature of 105 degrees Fahrenheit.
Brain damage from a fever generally will not occur unless the fever is over 107.6°F (42°C). Untreated fevers caused by infection will seldom go over 105°F (40.6°C) unless the child is overdressed or in a hot place. Febrile seizures do occur in some children.
21. The brain doesnt feel pain:
Even though the brain processes pain signals, the brain itself does not actually feel pain because there are no nociceptors located in brain tissue itself. This feature explains why neurosurgeons can operate on brain tissue without causing a patient discomfort, and, in some cases, can even perform surgery while the patient is awake.
22. Rice and some other grains contain chemicals that can enhance brain functions.
The brain also requires certain nutrients to stay healthy. Omega-3 fatty acids, for example, help build and repair brain cells, and antioxidants reduce cellular stress and inflammation, which are linked to brain aging and neurodegenerative disorders, such as Alzheimer’s disease.
23. Reading aloud and talking often to a young child promotes their brain development.
Spending time together while reading aloud helps to create strong parent-child bonds and promotes healthy brain development. Children that are read to more often have improved language and listening skills, experience stronger emotional connections to their loved ones, and gain a lifelong love of reading.
24. Optical illusions occur when what the eyes see conflicts with what the brain expects.
Optical illusions happen when our brain and eyes try to speak to each other in simple language but the interpretation gets a bit mixed-up. For example, it thinks our eyes told it something is moving but that's not what the eyes meant to say to the brain.
25. Chewing gum boosts your brain power.
Chewing gum can help increase alertness and attention. In one study, chewing gum was an A+ advantage: People performed better on verbal and math problems and were about 10 percent more alert when they chomped awayTrusted Source. Other research suggests chewing gum can boost brainpower in people of all ages.
26. At rest, your brain uses one-fifth of a calorie per minute.
This is because your brain needs energy to produce and release chemical signals called neurotransmitters to facilitate your many brain processes. And scientists have found that at rest, your brain uses about one fifth of a calorie every minute to get this done.
27. Information can be processed as slowly as 0.5 meters/sec or as fast as 120 meters/sec (about 268 miles/hr).
Brain information travels up to an impressive 268 miles per hour. When a neuron is stimulated, it generates an electrical impulse that travels from cell to cell. A disruption in this regular processing can cause an epileptic seizure.