Our bodies become susceptible to debilitating mental ailments such as Alzheimer's as we inevitably age. Some researchers have suggested our sugar intake could be a contributing factor.
Today, we discuss the impact sugar has on our minds as well as the science behind power running.
Gary Taubes, science and health journalist, author of "The Case Against Sugar"
Alex Hutchinson, Outside Magazine Sweat Science columnist, author of "Endure: Mind, Body, and the Curiously Elastic Limits of Human Performance"
Duane Mellor, dietitian and senior lecturer in human nutrition at Coventry University in London