Adaptive Thermogenesis:The process by which the body adjusts its heat production in response to changes in environmental temperature or energy intake, in order to maintain a stable core body temperature.
Nonshivering Thermogenesis: The generation of heat in the body without the involvement of muscle contractions, primarily through the activation of brown adipose tissue.
Metabolic Rate: The rate at which the body burns calories and generates heat, which is influenced by various factors such as body composition, physical activity, and environmental conditions.