What condition is characterized by an inability to tolerate excessive heat, associated with temperatures of 101°F or more?

The condition characterized by an inability to tolerate excessive heat, particularly at temperatures of 101°F or more, is hyperthermia. This condition occurs when the body's temperature regulation fails and the body overheats due to prolonged exposure to high temperatures or strenuous exercise, leading to potentially dangerous physiological responses.

Hyperthermia can manifest in several forms, ranging from mild heat exhaustion to severe heat stroke. It is a critical state, as the body can suffer from heat-related illnesses when it's unable to cool itself effectively. Common symptoms include nausea, dizziness, and confusion, which occur as the body's systems become overwhelmed by excessive heat.

Understanding this concept is crucial for recognizing the signs of heat-related illnesses and taking appropriate action, such as moving to a cooler environment, hydrating, and seeking medical attention if necessary.