![Brett Wingeier [left] and Daniel Chao, cofounders of Halo Neuroscience.](https://spectrum.ieee.org/media-library/brett-wingeier-left-and-daniel-chao-cofounders-of-halo-neuroscience.jpg?id=25581275&width=1200&height=900)
Olympic Athletes Are Electrifying Their Brains, and You Can Too
If a brain-stimulation gadget catches on, expect controversy over “brain doping”
23 Aug 2016
14 min read
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