One way of achieving higher overclocks is to raise the voltage to the chip, take the same principle, slap two electrodes to someone’s forehead, add 2 milliamps and voila up to a 20% gain in verbal skills.

"In the study, researchers at the institute asked 103 volunteers to recall as many words that begin with a particular letter as possible. The researchers then passed a 2-milliamp current -- one-tenth of what is needed to power a small LED (light-emitting diode) light -- through electrodes attached to the surfaces of the volunteers' foreheads. When the volunteers were quizzed again while the current was still on, this time with a different letter, they were able to come up with 20 percent more words on average."

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