Cuando morimos?

Muy interesante este articulo a un investigador de Cornelio en Times (aca). Un par de parrafos ilustrativos:

"People commonly perceive death as being a moment — you're either dead or you're alive. And that's a social definition we have. But the clinical definition we use is when the heart stops beating, the lungs stop working, and as a consequence the brain itself stops working. When doctors shine a light into someone's pupil, it's to demonstrate that there is no reflex present. The eye reflex is mediated by the brain stem and that's the area that keeps us alive; if that doesn't work then that means that the brain itself isn't working. At that point, I'll call a nurse into the room so I can certify that this patient is dead. Fifty years ago, people couldn't survive after that."

"Because there is a lack of blood flow, the cells go into a kind of a frenzy to keep themselves alive. And within about 5 minutes or so they start to damage or change. After an hour or so the damage is so great that even if we restart the heart again and pump blood, the person can no longer be viable because the cells have just been changed too much. And then the cells continue to change so that within a couple of days the body actually decomposes. So it's not a moment, it's a process that actually begins when the heart stops and culminates in the complete loss of the body, the decompositions of all the cells. However, ultimately what matters is, What's going on to a person's mind? What happens to the human mind and consciousness during death? Does that cease immediately as soon as the heart stops? Does it cease activity within the first 2 seconds, the first 2 minutes? Because we know that cells are continuously changing at that time. Does it stop after ten minutes, after half an hour, after an hour? And at this point we don't know."