. >> but terry mason is not intimidated. >> here we go. >> reporter: in fact, the young mother of fours kbeti ingetti to do something most of us wouldn't ever dare, run about six miles in what's called the real winter games. the test of cold weather endurance in brutal conditions. >> i did see frosty eyelashes, but it appears to be a-okay. i've got my gloves, my hat and my double socks. that's what you really, really need. >> reporter: "nightline" travelled to international falls, minnesota, where minnesota is a way of life. the jet to ssecret to surviving temperatures? no cowering indoors. these individuals do the opposite. they embrace it. >> nice and warm. >> right now, it's nine below zero. but it's not just a race. this canadian border town celebrates the cold with this annual event for the young and the young at heart. the bold, and the brave. there's something for everyone in this up to of 6,000. >> keep up the good work, girls. >> reporter: and it's a lifestyle lesson for the rest of us, shivering through one of the coldest winters on record. it all starts with an early morning