Work Smarter, Not Harder

TDCS uses electrodes placed on the outside of the head to pass tiny currents across regions of the brain for 20 minutes or so. The currents of 1–2 mA make it easier for neurons in these brain regions to fire. It is thought that this enhances the making and strengthening of connections involved in learning and memory. The technique is painless, all indications at the moment are that it is safe, and the effects can last over the long term.

via The ethics of brain boosting – University of Oxford.

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