If you or someone else is experiencing heat stress, it is crucial to stop any activity immediately and seek a cooler, shaded area. Hydrating with water or clear juice in slow sips is recommended. While sports drinks like Gatorade or Pedialyte can help replenish fluids and electrolytes, it is advisable to avoid energy drinks as they can lead to further dehydration.

Heat exhaustion occurs when the body loses excessive water and electrolytes due to profuse sweating. Symptoms of heat exhaustion include nausea, vomiting, fainting, slurred speech, weakness, headache, irritability, clammy skin, and an elevated body temperature.

If someone appears to have heat exhaustion, it is crucial to immediately move them to a cool environment, preferably with air conditioning, and encourage them to take small, frequent sips of cool liquids. If the person cannot be taken to a medical facility, calling 911 is advised. Removing restrictive or heavy clothing, as well as applying cold compresses or water to the head, face, neck, and wrists, can also help alleviate symptoms.

Heat stroke is the most severe heat-related illness and occurs when the body's temperature regulation fails, resulting in a core body temperature above 104°F. Additional symptoms may include loss of consciousness, seizures, or delirium.