Heat stress results from a combination of internal body heat production from doing work and external heat exposure from the environment. Both aspects need to be addressed properly to control heat stress.
Cold stress results from being exposed to extreme cold or working in cold environments.
What constitutes heat or cold stress and its effects can vary seasonally or even daily. This variation does not always allow people to become acclimatized and stay acclimatized, thereby increasing the risk of heat or cold stress.
Scroll down for additional information and protective measures.