People are being warned to "stop exercising" during the heatwave to avoid the risk of becoming seriously ill. The extreme weather adds to the large amount of warmth produced by the body during physical activity - increasing the likelihood of developing deadly heatstroke.
Mike Tipton, professor of human and applied physiology at the University of Portsmouth, said a person can go from emitting as much heat as a 90 watts lightbulb when at rest to giving off as much heat as a two kilowatt fire when exercising. He added: “We produce a lot of heat when we exercise.
“And we’re now at a temperature where… actually people will warm up, just doing their day-to-day activities in the house, or outside, and cooking, that sort of thing. And so fitter people undoubtedly do better in the heat, but we still see fit people who suffer from heat exhaustion in particular.
