The minimum size of a mammalian homeotherm appears to be related to the animal's maximum rate of endogenous heat production, the ambient thermal environment, and the animal's ability to be a facultative homeotherm.

Body temperature is maintained by a balance between heat production and heat loss. Temperature regulation consequent to exposure to a cold environment appears to be modified in elderly persons. An evaluation of the physiological adjustments made by older individuals is presented. It is apparent that hypothermia can develop in the older population as a consequence of modifications in both behavi...

Brown and beige adipocytes dissipate energy by uncoupling protein 1 (UCP1)-dependent UCP1-independent thermogenesis, which may be utilized to develop treatments against obesity. We have found that mRNA expression of the alanine/serine/cysteine transporter-1 (ASC-1) was induced during adipocyte differentiation human brown-prone deep neck beige-competent subcutaneous progenitors, SGBS preadipocyt...