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"Zap the brain with electricity to speed up mental maths"
"Are you bad at sums? Never remember your times tables? Now you can simply zap your brain with a pulse of electricity to make mental arithmetic a whole lot easier."

"Long-Term Enhancement of Brain Function and Cognition Using Cognitive Training and Brain Stimulation"
"Noninvasive brain stimulation has shown considerable promise for enhancing cognitive functions by the long-term manipulation of neuroplasticity."

"Math Skills Improved By Electric Shocks To Brain, Study Suggests"
"If you are one of the 20% of healthy adults who struggle with basic arithmetic, simple tasks like splitting the dinner bill can be excruciating."

"Want to Be Better at Math? A Jolt of Electricity to the Brain Might Do the Trick"
"If you're not great at doing math in your head, you're in pretty good company around these parts."

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