Examines the popularity of endurance sports and profiles four everyday individuals - cancer survivor, blind senior citizen and twin sisters - who compete in marathons and triathlons and are ... Read allExamines the popularity of endurance sports and profiles four everyday individuals - cancer survivor, blind senior citizen and twin sisters - who compete in marathons and triathlons and are redefining what it means to be an 'athlete'.Examines the popularity of endurance sports and profiles four everyday individuals - cancer survivor, blind senior citizen and twin sisters - who compete in marathons and triathlons and are redefining what it means to be an 'athlete'.