How what percent of calories does our body burn on its own (I mean like with breathing and keeping your heart pumping etc.)?
The number of calories burnt are about 1200-2000 for women and roughly 1800-2400 for men. Apart from sex other factors that determine the amount of calories burned include age and body size.
I don't know how accurate this is, but give it a look-see.....http://www.netnutritionist.com/tool3.htm