Holly Willoughby has revealed that she was "in tears" during most of the filming of the upcoming BBC One show Freeze the Fear.
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The 41-year-old – who was given two and a half weeks off from This Morning to film the series in January – will front the sub-zero survival show alongside comedian Lee Mack, and even though she didn't take part in the intense challenges, Holly admitted she still found the experience "life-changing".
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Freeze the Fear will see eight celebrities brave the freezing temperatures as they compete in gruelling challenges that will test them to their limits, both physically and mentally, all while under the guide of extreme athlete Wim Hof.
"This is not something they get voted off or a popularity contest, they are really challenging their minds and bodies," Holly said during an appearance on The One Show on Friday. "All I can tell you is it was intense for everybody, medics were involved, and I was in tears at many many points throughout it."
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She added: "It was kind of life-changing, it is amazing, it's one of the best things I've ever done."
Holly and Lee Mack host Freeze the Fear
The competing celebs are Strictly Come Dancing star Dianne Buswell, actress Tamzin Outhwaite, sports presenter Gabby Logan, and singer-songwriter and footballer Chelcee Grimes.
They will be joined by musical theatre legend Alfie Boe, musician Professor Green, North West Tonight weatherman Owain Wyn Evans and former Premier League footballer Patrice Evra.
EIght celebs take on extreme challenges in freezing temperatures
Holly revealed that the star-studded line-up didn't have it easy from the get-go, adding: "Lots of them turned up and said, 'I hate the cold.' But yeah, I'm very proud of that lot.
"They jump into a frozen lake, it's near freezing, that is their entry point. The first thing they have to do. When you hit that cold water, it literally takes your breath away. So, it's that thing of using your mind to control your fear, it's not normal to jump into a freezing lake."
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