What percent of the brain do we use?

What percentage does an average person use of his or her brain? I am thinking 8 percent, am I right?

• Answer:

  100% Think of it this way: the parts of the brain are like different muscles in your body. You use all of them, you need all of them, but you don't use them at the same time. If too much of your brain is activated, this leads to seizures. (This is actually what epilepsy is all about, overactivation of the brain). Similar to how if you flex all the muscles in your body it will look like a seizure. Hope this helped!