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About Brain

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1. The weight of the human brain is about 3 lbs.

2. Your skin weighs twice as much as your brain.

3. The cerebrum is the largest part of the brain and makes up 85% of the brain’s weight.

4. Your brain sends more messages everyday than all the phones in the world. Now that’s a lot of texting!

5. The brain’s gray matter is made up of neurons, which gather and transmit signals.

6. The white matter is made up of dendrites and axons, which create the network by which neurons send their signals.

7. Our brain is 60% white matter and 40% gray matter.

8. The brain is made up of about 75% water.

9. There are no pain receptors in the brain, so the brain can feel no pain.

10. Your brain consists of about 100 billion neurons.

11. There are anywhere from 1,000 to 10,000 synapses for each neuron.

12. Neurons develop at the rate of 250,000 neurons per minute during early pregnancy.

13. At birth, your brain was almost the same size as an adult brain and contained most of the brain cells for your whole life.

14. Your brain stopped growing at age 18.

15. 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.

16. Your brain uses 20% of the total oxygen in your body.

17. Your brain uses 20% of the blood circulating in your body.

18. If your brain loses blood for 8 to 10 seconds, you will lose consciousness.

19. Information can be processed as slowly as 0.5 meters/sec or as fast as 120 meters/sec (about 268 miles/hr).

20. The neocortex makes up about 76% of the human brain and is responsible for language and consciousness. The human neocortex is much larger than in animals.

21. The old adage of humans only using 10% of their brain is not true. Every part of the brain has a known function.

22. The brain can live for 4 to 6 minutes without oxygen, and then it begins to die. No oxygen for 5 to 10 minutes will result in permanent brain damage.

23. Excessive stress has shown to "alter brain cells, brain structure and brain function."

24. 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. A small area in the brain called the amygdala is responsible for your ability to read someone else’s face for clues to how they are feeling.

25. Scientists have discovered that men and women’s brains react differently to pain, which explains why they may perceive or discuss pain differently.

26. Studies show that brain waves are more active while dreaming than when you are awake.

27. Dreams are more than just visual images, and blind people do dream. Whether or not they dream in pictures depends on if they were born blind or lost their vision later.

28. Dreams are more than just visual images, and blind people do dream. Whether or not they dream in pictures depends on if they were born blind or lost their vision later.

29. Japanese researchers have successfully developed a technology that can put thoughts on a screen and may soon be able to screen people’s dreams.

30. Each time we blink, our brain kicks in and keeps things illuminated so the whole world doesn’t go dark each time we blink (about 20,000 times a day).

31. Music lessons have shown to considerably boost brain organization and ability in both children and adults.

32. 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.

33.  A brain thought to be 2000 years old was unearthed just recently at the University of York in northern England.

34. Daniel Tammet is an autistic savant who, since the age of three when he suffered an epileptic seizure, has been able to perform astounding mathematical computations, knows seven languages, and is developing a language of his own.

35. The first rhesus monkey was sent into space to study human behaviour in 1959.

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