THIS Morning hosts Rochelle Humes and Vernon Kay were left in tears when a guest revealed he is running 27 marathons to help find a cure for his wife's rare illness.
The pair - who are stepping in for Holly Willoughby and Phillip Schofield during their Christmas breaks - heard how Megan had taken "a turn for the worse" in hospital.
Megan developed a condition called Mast Cell Activation Syndrome after the traumatic birth of their daughter three years ago.
Captain Scott Fisher, 31, from Kent, was hoping to raise £27,000 for charity Mast Cell Action and joined the ITV show mid-marathons on day five of his epic challenge.
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