Isn't it odd that the medical definition of death is that moment the heart stops beating, but for some inexplicable reason, the existance of a beating heart is not proof of life??
Same with descriptions of people who are "brain dead". "Well they don't have a quality life". So a baby has brain activity and a beating heart and other functioning organs yet is not "alive".
All people on artificial life support systems aren't really alive either. They are not viable (for the time being).