Facts about brain

 The brain is part of your body’s central nervous system. It’s the most complicated part of your body. It has the ability to send and receive an enormous amount of information. Because it is so complex, there are some things doctors and scientists don’t completely understand yet about it. This also means that there are some amazing things you may not know about your brain.

1) Signs of successful brain surgeries go as far back as the Stone Age.

2) An adult brain weighs about 3 pounds.

3) About 75 percent of the brain is made up of water. This means that dehydration, even in small amounts, can have a negative effect on the brain functions.

4) The largest brain of any animal is that of the sperm whale. It weighs about 20 pounds.

5) The human brain will grow three times its size in the first year of life. It continues to grow until you’re about 18 years old.

6) Headaches are caused by a chemical reaction in your brain combined with the muscles and nerves of your neck and head.

7) The brain of a human contains approximately one hundred billion neurons

8) It is a myth that humans only use 10 percent of our brain. We actually use all of it. We’re even using more than 10 percent when we sleep.

9) Cholesterol is key to learning and memory. However, high cholesterol has different effects depending on your age and other factors.

10) Information runs between neurons in your brain for everything we see, think, or do. These neurons move information at different speeds. The fastest speed for information to pass between neurons is about 250 mph.               

11. The current human brain size has decreased by 10% compared to the size of Neanderthals. 

12. The type of music you listen to affects the way you perceive the world. 

13. If you have answered a tricky question with sarcasm, research suggests that you have a healthy and functioning brain! 

14. How often have you yawned when you see someone near you yawn? This is a phenomenon and among the few common psychology facts that have been explained by human nature to express empathy. 

15. A single negative sentence or event can outweigh a minimum of 5 positive things.

16. An individual will experience 7 minutes of intense neural activity before passing away. 

17. People can die from a broken heart. This phenomenon is also called stress cardiomyopathy. The short-term effect of the broken-heart syndrome is heart muscle dysfunction. 

18. A common occurrence among human beings is cognitive dissonance. This happens when people have two contradicting values and modify one to align with the other. 

19. You are more likely to read a long line quickly as opposed to a shorter line. However, there is still a general preference for shorter lines.

20. Have you ever wondered how many close friendships or relationships you can have? Research reveals that it is difficult to maintain relationships that exceed 150 in numbers.