Title: Heat Stress Acclimatization | NIOSH | CDC
Headings: Acclimatization
Acclimatization
Acclimatization schedule
Maintaining acclimatization

Content: In addition, the level of acclimatization each worker reaches is relative to the initial level of physical fitness and the total heat stress experienced by the individual. Maintaining acclimatization
Workers can maintain their acclimatization even if they are away from the job for a few days, such as when they go home for the weekend. However, if they are absent for a week or more then there may be a significant loss in the beneficial adaptations leading to an increased likelihood of heat-related illness and a need to gradually reacclimate to the hot environment. Some additional information on maintaining acclimatization: It can often be regained in 2 to 3 days upon returning to a hot job. It appears to be better maintained by those who are physically fit. Seasonal shifts in temperatures may result in difficulties. Working in hot, humid environments provides adaptive benefits which also apply in hot, desert environments, and vice versa. Air conditioning will not affect acclimatization. Page last reviewed: