Heat stress is the total heat burden to which the body is subjected by both external and internal factors. The body must balance the heat transferred into the body, heat generated in the body, and heat coming out of the body. Heat stress can greatly contribute to accidents and injuries in the workplace.

Effects of heat stress can include

• Dehydration
• Heat stroke
• Skin problems
• Cramps
• Fainting
• Stress on cardiovascular system
• Aggravation of pre-existing disability
• Induce unsafe acts
• Discouraged use of protective equipment e.g. Fogging of glasses
• Increased exposure to hazards (more…)