Heat stress is an illness that results from too much heat exposure. If unrecognized and not treated early, heat stress can lead to heat stroke.
Heat stroke can be fatal.
Heat stress occurs on hot jobs. Hot jobs have hot processes, radiant heat exposure, or unprotected sun exposure. These jobs cause constant sweating and require additional fluid intake. Workers on hot jobs must use protective measures. Hot jobs require rest breaks in cool areas, often on an hourly basis.