Neuromyths: "We only use 10% of our brain anyway"

Science advances through trial and error; this is because there are many theories that are constructed on the basis of observation.
One of this myths it is that we only use 10% of our brain. These myths came from probably Einstein who responded once during an interview this. Karl Lashley made support to this theory with electric shock experiments and many areas or the brain did not react to this shock, concluded that these areas had not function.
Another origin of the myth may be found in the fact that the brain is made up of ten glial cells for every neuron. Glial cells have a nutritional role and support nerve cells, but they do not transmit any information. In terms of transmission of nerve impulses only the neuron are recruited (or 10% of the cells comprising the brain) so that this offers a further source of misunderstanding on which the 10% myth might come, but this vision of cell function is simplistic: while the gial cells play a different role from that the neurons, they are not less essential to the functioning of the whole.
Neuroscience findings now show that the brain is 100% active. In neurosurgery when it is possible to observe the functions of the brain on patients under local anesthetic, electric stimulations show not inactive areas, even when not movement, sensation or emotion is being observed. No areas of the brain are completely inactive, even during sleep, if they were, it would indicate a serious functional disorder.