Abstract

If we base our understanding of death on evidence rather than fear or desire, we are bound to accept it as a twofold natural process: the cessation of bodily functions, including consciousness, followed by the body's dispersion into its physical elements. Cessation of function and the beginning of physical transformation occur together at the moment of death; exactly what constitutes that moment is a matter of controversy, an important matter because many physiological functions can now be sustained artificially. But there is some agreement that brain death, because it irrevocably ends mental activity, marks the Rubicon.