Final answer:
The exact rate of body temperature loss past 12 hours is not specified and depends on various factors including metabolism, environmental conditions, and health status. The body utilizes thermoregulation to maintain a core temperature between 36.5-37.5 °C (97.7-99.5 °F).
Step-by-step explanation:
The information provided indicates that the body engages in thermoregulation to maintain a stable core body temperature within a narrow range of 36.5-37.5 °C (97.7-99.5 °F). When considering how the body loses temperature over time, it's important to account for factors such as metabolism, heat loss through evaporation, convection, and radiation. The body produces heat as a byproduct of metabolism, which can vary depending on activity level. While the exact rate of temperature loss past 12 hours was not provided, it's crucial to know that any substantial drop in core temperature is potentially dangerous as it could lead to hypothermia, which is when the body temperature falls below 35.0 °C (95.0 °F). It is not specified how much body temperature drops every hour after 12 hours without additional context or information. Typically, in normal circumstances, the body uses various mechanisms to maintain a steady temperature. However, without external sources of heat or if experiencing significant heat loss due to harsh environmental conditions, the body temperature can decrease. The exact rate of decrease depends on numerous factors like clothing, weather conditions, and the individual's health status.