Hydration of Workers in Thermal Environments—Practical Recommendation

The importance of proper hydration for work performance in hot climates is well known, as opposed to its role in cold climates. Workers' water requirements may be high in both cold and hot environments, and the effects of dehydration can be a serious problem in either case. The National Institute for Occupational Safety and Health (NIOSH) and the Occupational Safety and Health Administration (OSHA) recommend that workers drink small amounts (150-250 mL at once) of chilled water (especially in hot environments) or warm beverages (especially in cold environments) every 15-20 min (before they become thirsty) to stay well hydrated. However, individual hydration plans are now more preferred, as no single recommendation is suitable for everyone. Workers should stay hydrated before, during, and after work. The article presents the importance of adequate hydration of workers as well as some recommendations for fluid intake in the workplace.