Why do people die, scientifically?

Question

I mean, how and why, specifically, do people die. Why do their organs stop working? Why do they lose nuutrient? Etc.

Please add sources if you can.

Answer 1

Replica tapes are never as good as the original. The cells in your body, however, are quite adept at replicating themselves, for a while, with relatively insigificant loss in their integrity during the first third of your life, providing, of course, you live a healthy life style and consume all the required nutrients to support this process. But eventually there comes a point when even the cells cannot sustain themselves for very much longer. This is due to the metabolic activity of your body, and to a lesser extent, the shortening of the telomeres of the cells. E.g. slow moving creatures like tortoises live very long lives, whereas cats and dogs enjoy a much shorter life, with us in between.

Eventually your body can longer put up a defence - against cancer, against infections, trauma, etc - and you die.

People never die from old age. Old Age is not a disease. There is always another cause - e.g. heart problems, etc

Answer 2

The same reason as your car will not last forever.

Yes the body repairs its self; but the system to regulate the repairing get old.
Your body ability to regulate its self gets old; and the regulator of the repair of bad regulator get deregulated by age.

The whole organism generally tires out and dies.

Answer 3

One of the best books for laypeople on this subject is "How We Die" by Dr. Sherwin Nuland. Check it out, it's really interesting.

Answer 4

You expire just like a hard commodity. General break down. Like all finite things. Not hard to understand. Highly observable too.

Answer 5

Most everyone dies of anoxia.

Lack of oxygen to the brain.

Answer 6

I would like to know as well....