That is life. Chaos is an essential ingredient of the life process. Without chaos in your life, you would not be alive. Chaos is the unformed, the unpredictable, the unexpected.
Body heat is part of chaos.
It does not have a shape that lasts through time. It is not predictable. Chaos is all the random, patternless, haphazard stuff in our universe. Heat is a form of chaos. Heat is an essential part of all living things.