MadSci Network: Medicine

Re: why doesn't a baby shiver when it is cold?

Date: Wed Mar 22 11:58:55 2000
Posted By: Gabriel Vargas, Post-doc/Fellow, Neurosciences/Psychiatry, UCSF
Area of science: Medicine
ID: 953014599.Me

Shivering is a means of thermoregulation (controlling body temperature) 
which can generate heat by muscle activity. Infants are thought not to be 
able to do this due to poor development of muscle tissue. Instead, infants 
use nonshivering thermogenesis (heat production) as a means of generating 
heat. This is accomplished in infants by basically burning fat using their 
storage of brown adipose(fat) tissue(a mammalian heat-producing tissue 
occurring especially in human newborns and in hibernators ) which is found 
in infants up to one year of age and in some adults acclimated to the cold.

hope this helps,
gabriel vargas, md/phd

Human Adaptability:An introduction to Ecological Anthropology
Emilio F. Moran

Current Queue | Current Queue for Medicine | Medicine archives

Try the links in the MadSci Library for more information on Medicine.

MadSci Home | Information | Search | Random Knowledge Generator | MadSci Archives | Mad Library | MAD Labs | MAD FAQs | Ask a ? | Join Us! | Help Support MadSci

MadSci Network,
© 1995-2000. All rights reserved.