It's not entirely normal to be a cross-country skier that is a retired kindergarten teacher. It's even more amazing that Barbara Klippel overcame a fall down a flight of stairs and a broken skull to win the premiere cross-country ski marathon.

Rather than letting MS define her, Wendy Booker is defying the disease by climbing the world's 7 tallest mountains.

Barbara Hillary is a 75-year-old cancer survivor who recently became the first black woman to reach the North Pole.