Tuesday, December 1, 2009

How Smart Are We Really?



Sounds ridiculous doesn't it? The myth that humans only use 10% of their brains has been used countless times for many years. According to the Cornell Center for Materials Research as well as Scientific American, it doesn't have a clear origin, but it did come from people who believed that all humans have special powers. These people thought that we used 10% of our brains daily and the other 90% was set aside for our psychic powers to develop. This makes the myth very controversial because there are people who believe in psychic powers and people who do not.


The science involved in this thought is in the way the brain is configured. The human brain is divided into several different sections and each of your body's functions is connected to the nerves of a certain section. Because of this, losing a part of your brain or damaging even a small part of it can have serious consequences.



As for evidence, technologies such as PET scans and fMRIs, which are imaging techniques, have shown that the entire brain is active and not just 10%. Additionally, a problem such as having a stroke causes damage to small areas of the brain, areas that are much less than 90%. If we only used 10% of our brains, think of how much more damage something such as a stroke would do. Therefore this myth is indeed false.




How Much of the Brain Do Humans Use? -- powered by eHow.com