The human body has a built-in cooling system. As body heat is generated from exertion, blood circulates closer to the skin. The body sends sweat to the skin s surface and the sweat evaporates, providing a cooling effect. This cooling process is adversely affected as temperatures and humidity surrounding the body increase. That s why we have a hard time staying cool and comfortable during summer weather.
Heat exhaustion occurs when the body loses too much fluid and salt.
Symptoms include profuse sweating, dizziness, nausea, weakness and clammy skin. In severe cases, the victim may vomit or lose consciousness. To provide first aid for heat exhaustion move the victim to a cool location where they can rest. As long as the victim is conscious, have them drink a sports drink such as Gatorade or Powerade, followed by cool water. Cool the victim down with cool, wet cloths or cool water.