Hot weather can kill. Heat-related Illness (HRI) ranges from relatively harmless conditions such as heat edema (swelling) and heat cramps to more serious illness such as heat syncope (fainting) and heat exhaustion. The most serious and often fatal form of HRI is heat stroke.
Cases of heat-related illness are expected to rise due to changes in climate. Knowing proper preventative measures as well as signs and symptoms for serious heat illnesses can protect workers.