US athletes using brain stimulation to improve Olympic performance

‘A number of athletes competing at the Rio 2016 Olympic Games have used an unconventional (and still legal) technology, which involves stimulating the brain, to help improve performance in competition.
A San Francisco-based company called Halo Neuroscience is behind the trend, with three American athletes among the first to try the technique, as reported by spectrum.ieee.org.
Transcranial direct current stimulation (tDCS) is a process that involves athletes wearing a device called a ‘Halo Sport’ on their heads, which channels a small current into the brain.’
Read more: US athletes using brain stimulation to improve Olympic performance