Brain training: should you believe the hype?

Do the puzzles, say the purveyors of pricey brain training apps, and you'll boost memory and concentration. Researchers have put their claims to the test

Everything you do changes your brain. Even reading this article. Right now, wherever you are, looking at these words is shaping and modifying the connections between neurons inside your head. It seems like a scary thought, but this process - known as neuroplasticity - is fundamental to our ability to learn new skills, keep hold of old ones, and form new memories.

Imagine, then, if we could take control of that process. If we could target specific types of skills and cognitive processes, then we could teach our brains to be better at, well, anything.