What condition is defined by an abnormally low body temperature?

The condition defined by an abnormally low body temperature is hypothermia. This occurs when the body loses heat more quickly than it can produce it, leading to a body temperature that drops below the normal range, typically below 95°F (35°C). Hypothermia can result from prolonged exposure to cold environments, wet conditions, or wind chill, making it a significant risk for individuals engaged in outdoor activities, especially on or around water.

In contrast, hyperthermia refers to an abnormally high body temperature often due to prolonged exposure to or physical activity in high temperatures. Fever is a temporary increase in body temperature, usually due to an illness or infection, while heat stroke is a severe condition caused by prolonged exposure to high temperatures, which can lead to failure of thermoregulation and severe health complications. Understanding these definitions is crucial for recognizing and responding to temperature-related health issues, particularly relevant for boating and outdoor activities in various weather conditions.