A neuroscientist’s guide to protecting your brain, in 58 minutes (opens in new tab)

A retired Japanese engineer once memorized pi to over 111,000 digits using nothing but storytelling and visualization. He also forgot his wife’s birthday that same year. Neuroscientist Lisa Genova uses this contradiction to dispel a persistent collective fear: that ordinary forgetting is an early warning sign of Alzheimer’s. This video is featured on .