The Halo headband wants to make you smarter by shocking your brain
http://cdn0.vox-cdn.com/uploads/chorus_image/image/32362305/halo_headband.0_standard_640.0.jpg I’m still not sure I would like to zap my brain with electric stimulation but the idea does seem quite interesting… http://www.theverge.com/2014/4/30/5668086/halo-neuroscience-brain-stimulation-funding-andreessen