Due to the Saudi hot climate and working conditions in industrial and plant facilities, heat can create a series of conditions where the human body could take on stress from overheating. Heat-related illnesses include heat cramps, heat exhaustion, heat rash, or heat stroke, each with its own symptoms and treatments. Symptoms can range from profuse sweating to dizziness, cessation of sweating, and collapsing. At greatest risk of heat stroke are the elderly, children, and people with medical conditions, such as heart disease. However, even young and healthy individuals can succumb to heat if they participate in strenuous physical activities during hot weather. This course will assist participants in identifying areas where heat stress can occur and will highlight the proper methods on heat stress prevention in the workplace and during hot temperature sea-sons.