A new study from researchers at the University of Illinois at Urbana-Champaign found that several nutrients in the Mediterranean diet are linked to healthy brain connectivity and higher cognitive performance in older adults.

Guest: David Linden.

At first glance, the human brain would seem to be one of the most beautifully engineered things in nature. In fact, says neuroscientist and Johns Hopkins professor David Linden, the brain is a cobbled-together mess—but this flawed design has led to some features of human experience that help us define life itself. Today on Focus, the author of The Accidental Mind takes us on a grand tour of the brain.

Guest: Jeff Hawkins.

The brain is not a computer, but a memory system, calling upon sequences of past events to make predictions for the future. This is what forms the basis of intelligence—and it is what most computers today lack. Today on Focus, we're joined by computer architect Jeff Hawkins to talk about how studying the human brain will allow us to revolutionize computing technology.