This programme looks into how physiological processes in the body and the brain can make the final weeks and months of a diet difficult. Fiona Gribble runs an experiment to show that the rate at which the Feasters eat their food affects how full they feel, Giles Yeo demonstrates how eating breakfast can help the Constant Cravers, and Paul Aveyard demonstrates ways that will help the Emotional Eaters learn how to deal with occasional indulgences and avoid further relapse. Lastly, the final results of the study are announced, revealing how successful the diet personalisation approach has been for the group and how many of the volunteers made their five per cent weight-loss target.