BBC presenter Louise Minchin has been taken to hospital after contracting frostbite during an Artic adventure challenge. The 57-year-old had been attempting to cycle 300 miles (483km) in three days in Canada's Northwestern Territories to raise money for the Duke of Edinburgh's Award. But little over a quarter of the way, she and Guiness World Record holding endurance athlete Mimi Anderson were forced to pull out after enduring dangerously cold winds despite preparing for the sub-zero temperatures, the broadcaster announced on Friday evening. "We are out of the race but we are safe, warm and being well looked after," Minchin told her Instagram followers from a hospital bed. The two had been 14 hours into the Inuvik Weekend Warrior Fat Bike Challenge - a three-day cycle across frozen rivers, remote highways and Canada's Arctic wilderness - when they were forced to withdraw. "We did around 140k in temperatures as low as -40C," the former BBC Breakfast host, 57, explained.…