Emily and Amy speak to Carol Bussey (University of Otago, New Zealand) about her research into circadian rhythms of the heart, and Robbie Jones and Pardeep Pabla  (University of Nottingham, UK) about their recent study into how meal timings can impact on our physiology. They also discuss: Why wasn't George Clooney constantly jet lagged in 'Up in the Air'? Is daylight saving time a dangerous phenomenon? And how did scientists find a cure for jet lag in hamsters?