What is the most important source of heat for the body?

Question

What is the most important source of heat for the body?​

Quizplus · Accepted Answer

Internal heat production, primarily from metabolic processes, is the most important source of heat for the body. While heat gain from the external environment and physical activity (exercise) can contribute to heat production, they are secondary sources compared to the body's ongoing internal metabolic processes. Eating and respiration may also contribute slightly to heat production but are not as significant as internal heat production.

What Is the Most Important Source of Heat for the Body?​

What Is the Most Important Source of Heat for the Body?