Just One Thing with Michael Mosley: Nibble Some Nuts

Sze-Yen Tan joins Michael to explain how nuts can benefit the brain and, in moderation, won't add to the waistline. Recent studies have shown that people who eat nuts perform better in cognitive tests and have improved short-term memory, while walnut eaters have been found to live over a year longer than non-nut eaters. Volunteer Emma swaps her usual snack for some mixed nuts to see the difference it makes