When awake, your brain can produce enough electricity to power a small lightbulb.
Fact! the brain uses electrical signals to send information throughout the body. As each neuron transmits information, they fire off action potentials in a synapse. These action potentials usually happen in less than a second and create a voltage charge of tens of millivolts. Adding together all the neurons in the brain, those seemingly small voltage amounts add up to quite a lot of electrical activitiy going on in your head!
