Clinical death is usually defined as the medical state in which it is impossible to revive a person with any technology at medicine’s disposal, in essence the complete and irreversible cessation of all body functions. Despite the fact that the body continues to live in cases of brain death Brain death is defined as a complete and irreversible cessation of brain activity. Absence of apparent brain function is not enough; evidence needs to be available that the condition is irreversible.
Traditionally, death was defined as the cessation of all body functions, including respiration and heartbeat. Since it became possible to revive some people after a period without respiration, heartbeat, or other visible signs of life, as well as to maintain respiration and blood flow artificially using life support treatments, an alternative definition for death was needed. In recent decades, the concept of “brain death” has emerged. By brain death criteria, a person can be pronounced clinically dead even if the heart continues to beat due to life support measures.
Long live copy/paste.