Can zapping your brain be beneficial?

For years, gamers, athletes and even regular people trying to improving their memory have resorted, with electrified enthusiasm, to “brain zapping” to help them gain an edge. The procedure, called transcranial direct current stimulation (tDCS), uses a battery and electrodes to deliver electrical pulses to the brain, usually through a cap or headset fitted close to the scalp. Proponents say these currents are beneficial for a range of neurological conditions like Alzheimer’s and Parkinson’s diseases, stroke and schizophrenia, but experts are warning that too little is known about the safety of tDCS. “You might end up with a placement of electrodes that doesn’t do what you think it does and could potentially have long-lasting effects,” said Matthew Krause, a neuroscientist at the Montreal Neurological Institute. A Montreal connection All functions…


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