About this episode
Every winter its the same, someone will tell you to put a hat on to save your body from losing all of its heat. But how much heat do you actually lose from your head? We take you on a journey from arctic conditions to a hot tub in Canada to explain why there might actually be more than one answer... Presenter: Tim Harford Producer: Leoni Robertson and Lizzy McNeiL
(friends sitting in a hot tub in winter surrounded by snow. Photo Credit: Oleh Slobodeniuk/Getty images)
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