Staying fit in the heat and do we need electrolytes?

We’ve had two heatwaves already this summer with warnings that even young and healthy people should rethink their fitness routines in the heat. So how can we keep exercising when it’s so hot you barely want to move? James chats with physiologist Damian Bailey from the University of South Wales. Next, James is at Rother Valley Country Park in Sheffield to meet Calli Hauger-Thackery who made…