How far would you go to test your body in extreme heat? Ironworker apprentice Britnee Miazek travels hundreds of kilometres to Brock University in St. Catharines, Ontario for a gruelling experiment to see how her body deals with high temperatures. She wants to find out why she stopped getting her period while working in sweltering conditions on a coke oven. Researchers are hoping to find answers for Britnee, and understand more about the long-term health effects of working in an increasingly hot environment. This episode is part of a CBC collaboration called "Overheated" where White Coat, Black Art, What on Earth, and Quirks and Quarks explore how heat is affecting our health, our cities and our ecosystems.