The scientific formula to make the happiest Christmas playlist

We generally think of Christmas as a happy time of merriment with family and friends, but of course, it can also be quite stressful.There is shopping to do, dinners to organise and so many visits and events to fit in that sometimes it can all be a little overwhelming…But fear not! Fionnuala Jones’ guest has used a scientific formula to create the world’s happiest playlist that will keep you smiling throughout.Claire Renfrew, Chartered Psychologist specialising in Music Psychology, joins to discuss.