Which of the following statements correctly lists heat-stress symptoms?

• A. Headaches
• B. Dizziness
• C. Upset Stomach
• D. All of the above

Answer: (D)

Heat stress can trigger a range of symptoms as the body tries to cool itself and stay hydrated. Headaches often come from dehydration and reduced blood flow to the brain during heat exposure. Dizziness can happen due to dehydration and electrolyte imbalance, especially when standing up quickly or after sweating a lot. Upset stomach occurs because dehydration and heat strain can upset digestion and cause nausea. Since each of these signs can occur with heat stress, recognizing that all three can appear together makes “All of the above” the best choice. If you notice these signs, move to a cooler area, rest, and hydrate.