With heat stress, there is an increased occurrence of heat-related disorders. Which statement best describes this trend?

• A. Decrease
• B. No change
• C. Increase
• D. Elimination

Answer: (C)

When the environment is hot, the body's cooling system is stressed and exposure increases the risk of heat-related disorders. As heat stress rises, core temperature tends to climb, sweat losses grow, and dehydration and electrolyte imbalances can develop. This combination places greater strain on the cardiovascular system and impairs thermoregulation, making heat-related conditions such as heat cramps, heat exhaustion, and heat stroke more likely. The more intense or longer the heat exposure, the higher the chance of these disorders occurring. In short, the trend is an increase. Mitigation like hydration, breaks, and acclimatization can reduce this risk, but without those measures the frequency of heat-related illnesses tends to go up with greater heat stress.