Gazzaley's study confirms that cognitive function can be improved — if you design training methods properly, says Klingberg, who is a consultant for Cogmed, a company he founded in 1999 to market computer-based training methods, particularly for people with attention- deficit disorders3. Last year, Gaz

No matter how much we pump up our brains with drugs originally intended to treat Alzheimer's and narcolepsy or attempt to "train" our brains using Cogmed or Lumosity, we are likely to remain terminally distracted by the flood of digital information from Google, Twitter, e-mail, RSS readers, Netflix,