Can You Zap Your Brain To Get Smarter?

A JOLT OF KNOWLEDGE: "Halo Neuroscience" may sound like a cult from a dystopian sci-fi novel, but it's a startup that just closed a $1.5 million round, led by Marc Andreessen and Jeff Clavier. The company, founded by neuroscientists, is developing a wearable device to "enhance brain performance for the healthy and impaired." (More deets on TechCrunch.) It's no joke. Wired recently took a look "Inside the Strange New World of DIY Brain Stimulation," where a heated debate has emerged over whether weekly brain zaps do indeed improve cognitive abilities and relieve pain.