What condition results from excessive heat and dehydration?

The condition that results from excessive heat and dehydration is heat exhaustion. Heat exhaustion occurs when the body loses an excessive amount of water and salt, typically through sweating, while trying to regulate its temperature in hot conditions. Symptoms of heat exhaustion include heavy sweating, weakness, dizziness, nausea, and sometimes fainting. It is a response to prolonged exposure to high temperatures and can be exacerbated by physical exertion, especially without adequate fluid intake.

In contrast, heat stroke represents a more severe condition where the body temperature rises to a critical level (usually above 104°F or 40°C) due to prolonged exposure to high heat and the body's inability to cool itself down adequately. While heat stroke can follow heat exhaustion, they are distinct conditions, with heat stroke being a medical emergency.

Heat balance refers to the equilibrium between heat produced by the body and heat lost to the environment, which is not a specific medical condition. Hypothermia, on the other hand, is a condition caused by exposure to cold temperatures leading to a dangerously low body temperature, which is opposite to the effects seen with excessive heat and dehydration.